feat(backend): 支持鼠标抓取功能

src/backend/x11/common.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <stdint.h>
+#include <xcb/xproto.h>
+
+#include "core/types.h"
+
+modifier_mask_t modifiers_xcb_to_zdwm(uint16_t mask);
+uint16_t modifiers_zdwm_to_xcb(modifier_mask_t mask);
+
+button_t button_xcb_to_zdwm(xcb_button_t button);
+xcb_button_t button_zdwm_to_xcb(button_t button);