Add a search field that is automatically focused #116
Description
Problem
Bringing up the shortcut overlay shows you a window with a bunch of text which can introduce a significant cognitive overload. Although text is well spaced and consideration have been taken to ensure legibility, it can be hard / straining to scan the entire content of the overlay for the one shortcut you're looking for.
Proposal
Add a search field that is automatically focused, so that immediately upon bringing up the overlay you can start typing for what you want to filter the amount of shortcuts presented to you (e.g. bring up the overlay and start typing "screenshot area" would show you "Select an area to grab" and "Copy an area to clipboard").
This could be especially useful / powerful when combined with #115, so that you could additionally search / filter not only system-wide shortcuts but application-specific ones
Prior Art (Optional)
Mouseless (macOS) does that
iPadOS also offers search for their shortcut overlay (see the search icon on the left)
