focus editor via Esc or Enter key(s)
focus editor via Esc or Enter key(s)

(unless already focused)

After eg. Run, quickly focus back to the editor by pressing either Esc or
Enter key.

Wanted effect:
* preserves cursor position in editor
(without this  you'd have to LMB, or Shift+Tab a variable number of times)

Side effect:
* clicking outside of editor area (eg. background) will allow you to
refocus editor via Esc/Enter

Unaffected:
* Esc/Enter do not affect/interfere with options selection within Settings.
* Esc/Enter have no effect when editor is already focused.

rust-lang/rust-playpen,plietar/pony-playpen,plietar/pony-playpen,rust-lang/rust-playpen,plietar/pony-playpen,rust-lang/rust-playpen,plietar/pony-playpen,rust-lang/rust-playpen