LibGUI: Register a whole bunch of properties in various widgets

Author: https://github.com/alimpfard
Commit: 90aeacbb58
Pull-request: https://github.com/SerenityOS/serenity/pull/4652
Reviewed-by: https://github.com/awesomekling

Libraries/LibGUI/GroupBox.cpp

@@ -35,6 +35,7 @@ namespace GUI {
 GroupBox::GroupBox(const StringView& title)
     : m_title(title)
 {
+    REGISTER_STRING_PROPERTY("title", title, set_title);
 }
 
 GroupBox::~GroupBox()