Fix the issue where getWindowInfo does not have a cache, which causes lag.

Author: qiuguohua

pal/minigame/wechat_mini_program.ts

@@ -124,6 +124,13 @@ minigame.createInnerAudioContext = createInnerAudioContextPolyfill(wx, {
     onSeek: false,
 }, true);
 
+let _cachedSystemInfo: SystemInfo = wx.getWindowInfo();
+minigame.onWindowResize?.((): void => {
+    // update cached system info
+    _cachedSystemInfo = wx.getWindowInfo() as SystemInfo;
+});
+minigame.getWindowInfo = (): SystemInfo => _cachedSystemInfo;
+
 // #region SafeArea
 // FIX_ME: wrong safe area when orientation is landscape left
 minigame.getSafeArea = (): SafeArea => {