Add Notification When Render End

Core/RenderManager.cs

@@ -720,6 +720,12 @@ namespace ADOFAIRenderer.Core
         private IEnumerator StopRenderCoroutine()
         {
             yield return new WaitUntil(() => endSuccessful);
+            var file = !string.IsNullOrEmpty(_currentOutPath) ? Path.GetFileName(_currentOutPath) : "동영상";
+            if (!Application.isFocused)
+            {
+                string renderFolder = Path.Combine(MelonEnvironment.GameRootDirectory, "Render");
+                OSNotification.Show("렌더링 완료!", $"'{file}'이(가) 성공적으로 저장되었습니다.", renderFolder);
+            }
             EndRender();
         }