add offset

fixes
add visual validation border and validate functionality

Azaion.Suite/MainSuite.xaml.cs

@@ -118,11 +118,11 @@ public partial class MainSuite
 
     private async Task SaveUserSettings()
     {
-        await ThrottleExt.Throttle(() =>
+        await ThrottleExt.ThrottleRunFirst(() =>
         {
             _configUpdater.Save(_appConfig);
             return Task.CompletedTask;
-        }, TimeSpan.FromSeconds(5));
+        }, TimeSpan.FromSeconds(2));
     }
 
     private void OnFormClosed(object? sender, EventArgs e)