chore: Align code/src/vs/platform/window/electron-main/window.ts with upstream

Signed-off-by: Roman Nikitenko <rnikiten@redhat.com>

Author: RomanNikitenko

code/src/vs/platform/window/electron-main/window.ts

@@ -197,5 +197,10 @@ export const enum WindowError {
 	/**
 	 * Maps to the `did-fail-load` event on a `WebContents`.
 	 */
-	LOAD = 3
+	LOAD = 3,
+
+	/**
+	 * Maps to the `responsive` event on a `BrowserWindow`.
+	 */
+	RESPONSIVE = 4,
 }