UI/AppKit: Use webview layout event instead of window resize events

Currently the window resize events are used to resize the webview.
But when extra window items appear, for example: search or DevTools
Bar then the webview is clipped out of the window. This also happens
when the tab bar is opened and closed. Listening to layout events
resolves these clipping issues completely.

UI/AppKit/Interface/LadybirdWebView.mm

@@ -1550,9 +1550,9 @@ static void copy_data_to_clipboard(StringView data, NSPasteboardType pasteboard_
     [self setWindowSize:window.size()];
 }
 
-- (void)viewDidEndLiveResize
+- (void)layout
 {
-    [super viewDidEndLiveResize];
+    [super layout];
     [self handleResize];
 }