Git commit modal command (#26405)

Fix KeyBinding::for_action() to use the active focus handle instead of
what was
rendered last.

This makes the UI consistently chose the cmd-escape binding for close
(because escape in the editor is editor::Cancel?),
so force it to be "escape"

Release Notes:

- git: Fixed escape tooltip in commit modal

crates/git_ui/src/git_panel.rs

@@ -694,10 +694,6 @@ impl GitPanel {
         }
     }
 
-    pub(crate) fn editor_focus_handle(&self, cx: &mut Context<Self>) -> FocusHandle {
-        self.commit_editor.focus_handle(cx).clone()
-    }
-
     fn focus_editor(&mut self, _: &FocusEditor, window: &mut Window, cx: &mut Context<Self>) {
         self.commit_editor.update(cx, |editor, cx| {
             window.focus(&editor.focus_handle(cx));