feat: recording keybindings

[Myrstad]

(1) Description

The title should be descriptive enough, but i will reiterate. The syntax description is lucklaster as arrow keys are not mentioned for example. So if there were a button to record your keybinding it would be easier for users to configure their shortcuts/ keybindings as they like.

(2) Alternatives I've considered

This is kind of mentioned with a custom .conf file (#350) for keybindings, although i still think it is way easier to just record a keybinding rather than (1) finding out the name of a key (2) then setting it with a syntax that is kind of unusual?

Two ways of implementation could be (1) adding a record button or (2) pressing multible buttons when entering the new shortcut will automatically add your buttons. Example pressing the "ctrl" key adds or pressing "-" appends "minus" to the text input string.

(3) Design / Screenshots / Mockups

Adding record button

As I mentioned in 'alternatives' this is badly drawn mockup for adding the "record shortcut button"

Modal/popup for recording shortcut

And it could create a popup like this if needed. Alterativly use the method of integrating keybinding recording to the alreadly implemented edit shortcut.