Enhancement request: keyboard shortcuts should be sortable

[lkintact]

1. Press F10 to open the Menu and select Keyboard Shortcuts. The list that shows should be sortable by the action name and by the key combination.
2. Click on Add... or Edit.... Those lists should be sortable too.

That's already the case in the GTK version, and it's convenient.

Qalculate! 5.1.1.

[hanna-kn]

Done.

[lkintact]

Thanks!