LibGUI: Use new layout system for basic widgets

Author: https://github.com/frhun
Commit: 19fac58e49
Pull-request: https://github.com/SerenityOS/serenity/pull/14261
Reviewed-by: https://github.com/AtkinsSJ ✅
Reviewed-by: https://github.com/MacDue
Reviewed-by: https://github.com/mjz19910

Userland/Libraries/LibGUI/MessageBox.cpp

@@ -177,7 +177,7 @@ void MessageBox::build()
     width = max(width, text_width + icon_width + 56);
 
     // FIXME: Use shrink from new layout system
-    set_rect(x(), y(), width, 80 + label.preferred_height());
+    set_rect(x(), y(), width, 80 + label.text_calculated_preferred_height());
     set_resizable(false);
 }