[Feature Request] filter / search in settings window

[schmurtzm]

Hi, when you have many lines in clavier+ it becomes difficult to find a specific line, it could be great to have a field to filter the list quickly.
It would filter on almost every fields (contents, shortcut and description)
For example this line :

will be displayed when you type "focus" or "notepad" or "mynote" or "alt".

Thank you.