✨ Keybindings Settings Pane

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

We need to provide users with the ability to set and manage keybindings used in CodeEdit.

### Describe the solution you'd like

Users need to be able to change keyboard shortcuts used to call commands within CodeEdit.
We will eventually allow users to save and apply keybinding sets.

### Additional context

Xcode's Keybinding Settings Pane

VS Code

macOS Keyboard Shortcuts

### Proposed Design