Add 'Most Commonly Used' section at beginning of 'Add Widget' Horizontal Bar

It’s fine to display the widgets in alphabetical order or have the ‘Category’ dropdown list, but what would cut down on the time selecting a commonly used widget is if you could keep track of the number of times it was used.

If I’m using the ‘Image’ or ‘Rich Text’ widgets most of the time then they should automatically move to the front of the list and that state should persist between switching pages to edit, for example.