支持窗口全屏操作

src/action.c

@@ -81,3 +81,9 @@ void toggle_client_floating(const user_action_arg_t *arg) {
 
   client_set_floating(wm.client_focused, !wm.client_focused->floating);
 }
+
+void toggle_client_fullscreen(const user_action_arg_t *arg) {
+  if (!wm.client_focused) return;
+
+  client_set_fullscreen(wm.client_focused, !wm.client_focused->fullscreen);
+}