Small changes

Author: Felix-CodingClimber

src/DotNetElements.AppFramework.MudBlazorExtensions/Components/TableActionsHeader.razor

@@ -17,4 +17,6 @@ else
 {
     [Parameter]
     public bool SimpleTable { get; set; }
+
+    // todo check why this has no Width param but in some places we set a Width param
 }

src/DotNetElements.AppFramework.MudBlazorExtensions/Extensions/DialogServiceExtensions.cs

@@ -84,8 +84,9 @@ public static async Task<bool> ShowConfirmDeleteDialogAsync(this IDialogService
     }
 
     // todo add overload with list of error messages
-    public static Task ShowValidationErrorMessage(this IDialogService dialogService)
+    // todo improve visualization of error messages
+    public static Task ShowValidationErrorMessage(this IDialogService dialogService, string? errorDetails = null)
     {
-        return dialogService.ShowMessageBox("Validation Error", "Please fix all validation errors.");
+        return dialogService.ShowMessageBox("Validation Error", $"Please fix all validation errors.\n\n{errorDetails}");
     }
 }

src/DotNetElements.AppFramework/Outbox/IOutbox.cs

@@ -0,0 +1,7 @@
+namespace DotNetElements.AppFramework;
+
+public interface IOutbox<TDbContext>
+    where TDbContext : DbContext, IDbSetOutbox
+{
+    void AddMessage<T>(T message);
+}