Centralise shortcut definitions

There are regularly reports like https://forums.ankiweb.net/t/2-1-49-hotkey-browser-mode/15254. In this particular case I remember suggesting several key sequences before coming up with a seemingly unconflicting one.

I wonder if it would be possible to define all of Anki's key sequences in one place, like `aqt/shortcuts.py`. That would facilitate testing for conflicts (with each other or OS shortcuts), make it easier to find available sequences and allow for documenting previous experiences (I have yet to find a useful online ressource for that).
It should be easy enough for shortcuts defined in PyQt, but is there a way to do that for the ones defined in TS as well? Designer shortcuts would have to be moved into Python, but that's not necessarily a bad thing in my opinion.