Replace the 400-line on-key function with cl-tty text-input callbacks.
Add on-cancel, on-tab, on-history slots to cl-tty's text-input widget.
Remove defkeymap :local up/down/escape handlers.
Remove (member k '(:enter :tab :escape :up :down)) from process-key-event.
PageUp/PageDown stay in keymap, routed to handle-ppage/handle-npage.
Fix XDG cl-tty.asd to remove stale select-package/select references
and add missing markdown-package/markdown entries.
Fix #\) character literal (not valid in all contexts).
Fix several missing closing parentheses in handle-tab and command-dispatch.
Amr Gharbeia
e763768122