[Feature] Configuration file items for customisable keybinds

[bladeacer]

Is your feature request related to a problem? Please describe.
Related to #111 .

Currently, configuring keybinds in Surge is not as flexible as in other programmes.

Describe the solution you'd like

I believe an approach could be exposing configuration file items for keybinds which lets users customise it. Like the theming configuration it can come with built-ins/presets (e.g. Default/Vi/Emacs/nano style). The config reader will prioritise in the following order:

1. Configuration file user custom keybind overrides
2. Set/Selected built-in keybind preset type (Default/Vi/Emacs/nano)
3. Default

Describe alternatives you've considered
N/A

Additional context
N/A

[SuperCoolPencil]

I don't think this is a very high-priority issue right now.

[bladeacer]

Hmm, I guess so. It is a fair bit of tinkering within the codebase, though I believe those really interested would be more than happy to help out down the road. Will leave this issue as is for now, perhaps until I have more thoughts/implementation details.