Some minor refactorings.

src/Squidex.Domain.Apps.Core/Contents/NamedContentData.cs

@@ -90,7 +90,7 @@ namespace Squidex.Domain.Apps.Core.Contents
             return result;
         }
 
-        public NamedContentData ToApiModel(Schema schema, LanguagesConfig languagesConfig, IReadOnlyCollection<Language> languagePreferences = null, bool excludeHidden = true)
+        public NamedContentData ToApiModel(Schema schema, LanguagesConfig languagesConfig, bool excludeHidden = true)
         {
             Guard.NotNull(schema, nameof(schema));
             Guard.NotNull(languagesConfig, nameof(languagesConfig));

src/Squidex.Infrastructure/Log/Internal/ConsoleLogProcessor.cs

@@ -13,7 +13,7 @@ using System.Threading.Tasks;
 
 namespace Squidex.Infrastructure.Log.Internal
 {
-    public class ConsoleLogProcessor : IDisposable
+    public class ConsoleLogProcessor : DisposableObjectBase
     {
         private readonly IConsole console;
         private const int MaxQueuedMessages = 1024;
@@ -54,19 +54,23 @@ namespace Squidex.Infrastructure.Log.Internal
             processor.ProcessLogQueue();
         }
 
-        public void Dispose()
+        protected override void DisposeObject(bool disposing)
         {
-            messageQueue.CompleteAdding();
-
-            try
-            {
-                outputTask.Wait(1500);
-            }
-            catch (TaskCanceledException)
-            {
-            }
-            catch (AggregateException ex) when (ex.InnerExceptions.Count == 1 && ex.InnerExceptions[0] is TaskCanceledException)
+            if (disposing)
             {
+                messageQueue.CompleteAdding();
+                messageQueue.Dispose();
+
+                try
+                {
+                    outputTask.Wait(1500);
+                }
+                catch (TaskCanceledException)
+                {
+                }
+                catch (AggregateException ex) when (ex.InnerExceptions.Count == 1 && ex.InnerExceptions[0] is TaskCanceledException)
+                {
+                }
             }
         }
     }

src/Squidex.Infrastructure/Log/Internal/FileLogProcessor.cs

@@ -83,7 +83,7 @@ namespace Squidex.Infrastructure.Log.Internal
 
                         if (i == Retries)
                         {
-                            Console.WriteLine("Failed to write to log file '{0}': {1}", path, ex);
+                            Console.WriteLine($"Failed to write to log file '{path}': {ex}");
                         }
                     }
                 }

src/Squidex.Infrastructure/Timers/CompletionTimer.cs

@@ -30,7 +30,7 @@ namespace Squidex.Infrastructure.Timers
             Guard.NotNull(callback, nameof(callback));
             Guard.GreaterThan(delayInMs, 0, nameof(delayInMs));
 
-            runTask = RunInternal(delayInMs, initialDelay, callback);
+            runTask = RunInternalAsync(delayInMs, initialDelay, callback);
         }
 
         public Task StopAsync()
@@ -50,7 +50,7 @@ namespace Squidex.Infrastructure.Timers
             }
         }
 
-        private async Task RunInternal(int delay, int initialDelay, Func<CancellationToken, Task> callback)
+        private async Task RunInternalAsync(int delay, int initialDelay, Func<CancellationToken, Task> callback)
         {
             try
             {

src/Squidex/Controllers/Api/Apps/AppClientsController.cs

@@ -25,7 +25,7 @@ namespace Squidex.Controllers.Api.Apps
     [MustBeAppOwner]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Apps")]
+    [SwaggerTag(nameof(Apps))]
     public sealed class AppClientsController : ControllerBase
     {
         public AppClientsController(ICommandBus commandBus)

src/Squidex/Controllers/Api/Apps/AppContributorsController.cs

@@ -26,7 +26,7 @@ namespace Squidex.Controllers.Api.Apps
     [MustBeAppOwner]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Apps")]
+    [SwaggerTag(nameof(Apps))]
     public sealed class AppContributorsController : ControllerBase
     {
         private readonly IAppPlansProvider appPlansProvider;

src/Squidex/Controllers/Api/Apps/AppLanguagesController.cs

@@ -28,7 +28,7 @@ namespace Squidex.Controllers.Api.Apps
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Apps")]
+    [SwaggerTag(nameof(Apps))]
     public sealed class AppLanguagesController : ControllerBase
     {
         public AppLanguagesController(ICommandBus commandBus)

src/Squidex/Controllers/Api/Apps/AppsController.cs

@@ -27,7 +27,7 @@ namespace Squidex.Controllers.Api.Apps
     /// </summary>
     [Authorize]
     [ApiExceptionFilter]
-    [SwaggerTag("Apps")]
+    [SwaggerTag(nameof(Apps))]
     public sealed class AppsController : ControllerBase
     {
         private readonly IAppRepository appRepository;

src/Squidex/Controllers/Api/Assets/AssetContentController.cs

@@ -25,7 +25,7 @@ namespace Squidex.Controllers.Api.Assets
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Assets")]
+    [SwaggerTag(nameof(Assets))]
     public sealed class AssetContentController : ControllerBase
     {
         private readonly IAssetStore assetStorage;

src/Squidex/Controllers/Api/Assets/AssetsController.cs

@@ -35,7 +35,7 @@ namespace Squidex.Controllers.Api.Assets
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Assets")]
+    [SwaggerTag(nameof(Assets))]
     public sealed class AssetsController : ControllerBase
     {
         private readonly IAssetRepository assetRepository;

src/Squidex/Controllers/Api/History/HistoryController.cs

@@ -24,7 +24,7 @@ namespace Squidex.Controllers.Api.History
     [MustBeAppEditor]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("History")]
+    [SwaggerTag(nameof(History))]
     public sealed class HistoryController : ControllerBase
     {
         private readonly IHistoryEventRepository historyEventRepository;

src/Squidex/Controllers/Api/Languages/LanguagesController.cs

@@ -21,7 +21,7 @@ namespace Squidex.Controllers.Api.Languages
     /// </summary>
     [Authorize]
     [ApiExceptionFilter]
-    [SwaggerTag("Languages")]
+    [SwaggerTag(nameof(Languages))]
     public sealed class LanguagesController : Controller
     {
         /// <summary>

src/Squidex/Controllers/Api/Ping/PingController.cs

@@ -18,7 +18,7 @@ namespace Squidex.Controllers.Api.Ping
     [MustBeAppReader]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Ping")]
+    [SwaggerTag(nameof(Ping))]
     public sealed class PingController : Controller
     {
         /// <summary>

src/Squidex/Controllers/Api/Plans/AppPlansController.cs

@@ -27,7 +27,7 @@ namespace Squidex.Controllers.Api.Plans
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Plans")]
+    [SwaggerTag(nameof(Plans))]
     public sealed class AppPlansController : ControllerBase
     {
         private readonly IAppPlansProvider appPlansProvider;

src/Squidex/Controllers/Api/Schemas/SchemaFieldsController.cs

@@ -22,7 +22,7 @@ namespace Squidex.Controllers.Api.Schemas
     [MustBeAppDeveloper]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Schemas")]
+    [SwaggerTag(nameof(Schemas))]
     public sealed class SchemaFieldsController : ControllerBase
     {
         public SchemaFieldsController(ICommandBus commandBus)

src/Squidex/Controllers/Api/Schemas/SchemasController.cs

@@ -29,7 +29,7 @@ namespace Squidex.Controllers.Api.Schemas
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Schemas")]
+    [SwaggerTag(nameof(Schemas))]
     public sealed class SchemasController : ControllerBase
     {
         private readonly ISchemaRepository schemaRepository;

src/Squidex/Controllers/Api/Statistics/UsagesController.cs

@@ -26,7 +26,7 @@ namespace Squidex.Controllers.Api.Statistics
     [MustBeAppEditor]
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Statistics")]
+    [SwaggerTag(nameof(Statistics))]
     public sealed class UsagesController : ControllerBase
     {
         private readonly IUsageTracker usageTracker;

src/Squidex/Controllers/Api/UI/UIController.cs

@@ -21,7 +21,7 @@ namespace Squidex.Controllers.Api.UI
     /// Manages ui settings and configs.
     /// </summary>
     [ApiExceptionFilter]
-    [SwaggerTag("UI")]
+    [SwaggerTag(nameof(UI))]
     public sealed class UIController : Controller
     {
         private readonly MyUIOptions uiOptions;

src/Squidex/Controllers/Api/Users/UsersController.cs

@@ -29,7 +29,7 @@ namespace Squidex.Controllers.Api.Users
     /// Readonly API to retrieve information about squidex users.
     /// </summary>
     [ApiExceptionFilter]
-    [SwaggerTag("Users")]
+    [SwaggerTag(nameof(Users))]
     public sealed class UsersController : Controller
     {
         private static readonly byte[] AvatarBytes;

src/Squidex/Controllers/Api/Webhooks/WebhooksController.cs

@@ -27,7 +27,7 @@ namespace Squidex.Controllers.Api.Webhooks
     /// </summary>
     [ApiExceptionFilter]
     [AppApi]
-    [SwaggerTag("Webhooks")]
+    [SwaggerTag(nameof(Webhooks))]
     [MustBeAppDeveloper]
     public sealed class WebhooksController : ControllerBase
     {

src/Squidex/Controllers/ContentApi/ContentsController.cs

@@ -96,7 +96,7 @@ namespace Squidex.Controllers.ContentApi
 
                     if (item.Data != null)
                     {
-                        itemModel.Data = item.Data.ToApiModel(contents.Schema.SchemaDef, App.LanguagesConfig, null, !isFrontendClient);
+                        itemModel.Data = item.Data.ToApiModel(contents.Schema.SchemaDef, App.LanguagesConfig, !isFrontendClient);
                     }
 
                     return itemModel;
@@ -120,7 +120,7 @@ namespace Squidex.Controllers.ContentApi
             {
                 var isFrontendClient = User.IsFrontendClient();
 
-                response.Data = content.Content.Data.ToApiModel(content.Schema.SchemaDef, App.LanguagesConfig, null, !isFrontendClient);
+                response.Data = content.Content.Data.ToApiModel(content.Schema.SchemaDef, App.LanguagesConfig, !isFrontendClient);
             }
 
             Response.Headers["ETag"] = new StringValues(content.Content.Version.ToString());

src/Squidex/Controllers/UI/Profile/ProfileController.cs

@@ -76,7 +76,7 @@ namespace Squidex.Controllers.UI.Profile
 
         [HttpGet]
         [Route("/account/profile/login-add-callback/")]
-        public Task<IActionResult> AddLoginCallback(string remoteError = null)
+        public Task<IActionResult> AddLoginCallback()
         {
             return MakeChangeAsync(async user =>
             {