Add copilot package.

It is disabled by default but can be enabled if necessary.

configs/init-ai.el

@@ -41,5 +41,12 @@
         )
   )
 
+(use-package copilot
+  :bind (("M-<return>" . copilot-complete)
+         :map copilot-completion-map
+         ("C-g" . 'copilot-clear-overlay)
+         ("C-<return>" . 'copilot-accept-completion)
+         ("C-<tab>" . 'copilot-accept-completion-by-word)))
+
 (provide 'init-ai)
 ;;; init-ai.el ends here