show (preview) for the preview versions on the docs version list

resolves https://github.com/abpframework/abp/issues/5562

modules/docs/src/Volo.Docs.Domain/Volo/Docs/Localization/Domain/en.json

@@ -13,7 +13,7 @@
     "ClearCacheConfirmationMessage": "Are you sure to clear all caches for project \"{0}\"",
     "ReIndexAllProjects": "ReIndex all projects",
     "ReIndexProject": "ReIndex project",
-    "ReIndexProjectConfirmationMessage":"Are you sure to reindex for project \"{0}\"",
+    "ReIndexProjectConfirmationMessage": "Are you sure to reindex for project \"{0}\"",
     "SuccessfullyReIndexProject": "Successfully reindex for project \"{0}\"",
     "ReIndexAllProjectConfirmationMessage": "Are you sure to reindex all project?",
     "SuccessfullyReIndexAllProject": "Successfully reindex for all projects",
@@ -33,6 +33,7 @@
     "Upd": "Upd",
     "NewExplanation": "Created in the last two weeks.",
     "UpdatedExplanation": "Updated in the last two weeks.",
-    "Volo.Docs.Domain:010002": "ShortName {ShortName} already exists."
+    "Volo.Docs.Domain:010002": "ShortName {ShortName} already exists.",
+    "Preview": "preview"
   }
 }

modules/docs/src/Volo.Docs.Domain/Volo/Docs/Localization/Domain/tr.json

@@ -33,6 +33,7 @@
     "Upd": "Günc",
     "NewExplanation": "Son iki hafta içinde oluşturuldu.",
     "UpdatedExplanation": "Son iki hafta içinde güncellendi.",
-    "Volo.Docs.Domain:010002": "ShortName {ShortName} zaten var."
+    "Volo.Docs.Domain:010002": "ShortName {ShortName} zaten var.",
+    "Preview": "ön izleme"
   }
 }

modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml.cs

@@ -18,6 +18,7 @@ using Volo.Docs.HtmlConverting;
 using Volo.Docs.Models;
 using Volo.Docs.Projects;
 using Volo.Docs.GitHub.Documents.Version;
+using Volo.Docs.Localization;
 
 namespace Volo.Docs.Pages.Documents.Project
 {
@@ -99,6 +100,8 @@ namespace Volo.Docs.Pages.Documents.Project
             _documentSectionRenderer = documentSectionRenderer;
             _versionHelper = versionHelper;
             _uiOptions = options.Value;
+
+            LocalizationResourceType = typeof(DocsResource);
         }
 
         public virtual async Task<IActionResult> OnGetAsync()
@@ -312,11 +315,15 @@ namespace Volo.Docs.Pages.Documents.Project
             {
                 var LatestVersionBranchNameWithoutPrefix = RemoveVersionPrefix(Project.LatestVersionBranchName);
 
-                var latest = versions.FirstOrDefault(v=> v.Version == LatestVersionBranchNameWithoutPrefix);
-
-                if (latest != null)
+                foreach (var version in versions)
                 {
-                    return latest;
+                    if (version.Version == LatestVersionBranchNameWithoutPrefix)
+                    {
+                        return version;
+                    }
+                    
+                    version.DisplayText = $"{version.DisplayText} ({L["Preview"].Value})";
+
                 }
             }