The default binding for ConfirmInEditor is <a-enter>, which has two problems:
- some terminal emulators don't support it, including the default terminal on
Mac (Terminal.app)
- on Windows it is bound to toggling full-screen
Ideally we would use <c-enter> instead (and Command-Enter on Mac), but neither
is possible without https://github.com/gdamore/tcell/issues/671, so for the time
being add an alternate keybinding which works everywhere.
Show both bindings in the footer of the commit description panel if they are
both non-null. While we're at it, fix the footer for the case where either or
both of the keybindings are set to <disabled>.
And finally, change "commit" to "submit" in that footer; we use the same panel
also for creating tags, in which case "commit" is not quite right.
450239d5c8