opt: 竖屏直播布局

lib/pages/live_room/controller.dart

@@ -48,6 +48,7 @@ class LiveRoomController extends GetxController {
   // 直播间弹幕开关 默认打开
   RxBool danmakuSwitch = true.obs;
   late String buvid;
+  RxBool isPortrait = false.obs;
 
   @override
   void onInit() {
@@ -101,6 +102,7 @@ class LiveRoomController extends GetxController {
   Future queryLiveInfo() async {
     var res = await LiveHttp.liveRoomInfo(roomId: roomId, qn: currentQn);
     if (res['status']) {
+      isPortrait.value = res['data'].isPortrait;
       List<CodecItem> codec =
           res['data'].playurlInfo.playurl.stream.first.format.first.codec;
       CodecItem item = codec.first;