keybindings: add presets for non-english-qwerty keyboard layouts

[istudyatuni]

Config would look like

[lazyjj.keybinds]
extra = ["ru-qwerty"]

Not sure if this is the right way to do this, but crossterm seems to not support getting physical key from key event, like in browsers, only character

I tried to find any library with key mappings (e.g. ru -> en), but no luck

[Cretezy]

I'm open to adding this, but I have no experience with alternative keyboards (except French).

[istudyatuni]

Me too 😁