Use InvokeAsync for async state updates in BandGridBase

Replaced direct StateHasChanged() calls with InvokeAsync(StateHasChanged) to ensure asynchronous state updates. This helps prevent issues that can arise from synchronous state changes during component lifecycle events or event callbacks in Blazor.

DbFirst.BlazorWebApp/Components/BandGridBase.cs

@@ -157,7 +157,7 @@ public abstract class BandGridBase<TItem> : ComponentBase
                 .Select(c => c.FieldName)
                 .ToList();
         }
-        StateHasChanged();
+        _ = InvokeAsync(StateHasChanged);
     }
 
     protected void UpdateBandOptions()