Fix property changed event

Author: Jack251970

Flow.Launcher/SettingPages/ViewModels/SettingsPaneAboutViewModel.cs

@@ -263,10 +263,10 @@ private bool ClearCacheFolder()
                 App.API.LogException(ClassName, $"Failed to delete cache directory: {dir.Name}", e);
                 success = false;
             }
-
-            OnPropertyChanged(nameof(CacheFolderSize));
         }
 
+        OnPropertyChanged(nameof(CacheFolderSize));
+
         return success;
     }