fix: issue#48 Edit/save modal not disappearing

Author: Gzozo

grade-management-new/GradeManagement.Client/Components/LoadingComponent.razor

@@ -24,14 +24,18 @@ else
 
     public async Task StartLoading()
     {
-        if (LongTask != null)
+        _ = Task.Run(async () =>
         {
-            IsLoading = true;
-            StateHasChanged();
-            await LongTask();
-            IsLoading = false;
-            StateHasChanged();
-        }
+            await Task.Delay(1); // Delay for 100 milliseconds
+            if (LongTask != null)
+            {
+                IsLoading = true;
+                StateHasChanged();
+                await LongTask();
+                IsLoading = false;
+                StateHasChanged();
+            }
+        });
     }
 
 }

grade-management-new/GradeManagement.Client/Pages/Teachers.razor

@@ -78,12 +78,7 @@
     {
         await UserClient.UpdateAsync(items.Id, items);
         SnackbarService.ShowEditSuccess();
-        // Run the StartLoading method asynchronously after a short delay
-        _ = Task.Run(async () =>
-        {
-            await Task.Delay(1); // Delay for 100 milliseconds
-            await loadingComponentRef.StartLoading();
-        });
+        await loadingComponentRef.StartLoading();
     }
 
     private async Task DeleteItem(User item)