Update `eaf-bind-key` to allow binding regular emacs commands

eaf.el

@@ -681,15 +681,22 @@ Use it as (eaf-setq var val)"
 (defmacro eaf-bind-key (command key eaf-app-keybinding)
   "This function binds COMMAND to KEY in EAF-APP-KEYBINDING list.
 
-COMMAND is a command with `eaf-proxy-' prefix found by calling
-`eaf-describe-bindings' in an EAF buffer, but dropping the prefix.
+Use this to bind keys for EAF applications.
 
-KEY is a string representing a sequence of keystrokes and events.
+COMMAND is a symbol of a regular Emacs command or a python app
+command. You can see a list of available commands by calling
+`eaf-describe-bindings' in an EAF buffer. The `eaf-proxy-' prefix
+should be dropped for the COMMAND symbol.
 
-EAF-APP-KEYBINDING is one of the eaf-.*-keybinding variables.
+KEY is a string representing a sequence of keystrokes and events.
 
-This is used to bind key to EAF Python applications."
-  `(map-put ,eaf-app-keybinding ,key ,(symbol-name command)))
+EAF-APP-KEYBINDING is one of the `eaf-<app-name>-keybinding'
+variables, where <app-name> can be obtained by checking the value
+of `eaf--buffer-app-name' inside the EAF buffer."
+  `(map-put ,eaf-app-keybinding ,key
+            ,(if (string-match "_" (symbol-name command))
+                 (symbol-name command)
+               `(quote ,command))))
 
 (defun eaf-focus-buffer (msg)
   (let* ((coordinate-list (split-string msg ","))