Styling fix and restrict tokens to provide better error message.

.gitignore

@@ -22,7 +22,7 @@ _test-output/
 # NodeJS 
 node_modules/
 
-/src/Squidex/Assets/
+/backend/src/Squidex/Assets
 
 appsettings.Development.json
 appsettings.Production.json

backend/src/Squidex/Config/Authentication/IdentityServerServices.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using IdentityServer4.AccessTokenValidation;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Builder;
@@ -42,6 +43,7 @@ namespace Squidex.Config.Authentication
                     options.ApiName = apiScope;
                     options.ApiSecret = null;
                     options.RequireHttpsMetadata = identityOptions.RequiresHttps;
+                    options.SupportedTokens = SupportedTokens.Jwt;
                 });
 
                 authBuilder.AddOpenIdConnect(options =>

frontend/app/theme/_bootstrap.scss

@@ -521,8 +521,8 @@ a {
     }
 
     &-lg {
-        @media (min-width: 992px) {
+        @media (max-width: 992px) {
-            max-width: 854px;
+            max-width: 90%;
         }
     }