adding a keyboard shortcut hook, adding a code drawer open/close shrtcut

[d88naimi]

Adding a keyboard shortcut hook
Adding code drawer open/close shortcut

[shrunyan]

Please thoroughly test these 2 secarios

• Does the useEffect logic inside the hook get called, cleaning up the event listener, when the consuming component unmounts?
• Does consuming the hook twice in the same view, or even the same component, attach to handlers and both callbacks are triggered with the same key press?