Interface kit: Resize menu if invalidated.

Change-Id: I45a966b13be6953431a1176378e4ddc10920916b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2325
Reviewed-by: waddlesplash <[email protected]>
Reviewed-by: John Scipione <[email protected]>
Reviewed-by: Adrien Destugues <[email protected]>
Reviewed-by: X512 <[email protected]>

src/kits/interface/Menu.cpp

@@ -2414,6 +2414,7 @@ BMenu::_RelayoutIfNeeded()
 		fUseCachedMenuLayout = true;
 		_CacheFontInfo();
 		_LayoutItems(0);
+		_UpdateWindowViewSize(false);
 		return true;
 	}
 	return false;