[Wontdo] Edit Shortcuts: Resize command panel with drag handle and persist height change

[porg]

Followup of Custom Shortcuts: Lost after each beta update Mocked:

[forum_adm]

You can just resize the dialog at the bottom border vertically.

The macOS remembers the last dialog size for the next opening.

[porg]

Closing as [Wontdo]: No need to make the panel itself resize-able if you can resize the whole window which is "good enough" for this only occasionally used window.