Support for third party modules, improved error handling, standardardized enum naming, reorganized interface definitions, support for DB script upgrades, added Settings entity

Oqtane.Client/Shared/Theme.razor

@@ -1,4 +1,5 @@
 @using Oqtane.Shared
+@using Oqtane.Modules
 
 @DynamicComponent
 
@@ -19,7 +20,11 @@
             }
             else
             {
-                // theme does not exist with type specified
+            // theme does not exist with type specified
+            builder.OpenComponent(0, Type.GetType(Constants.ModuleMessageControl));
+                builder.AddAttribute(1, "Type", MessageType.Error);
+                builder.AddAttribute(2, "Message", "Error Loading Page Theme " + PageState.Page.ThemeType);
+                builder.CloseComponent();
             }
         };
     }