增加一言视频播放页面

@@ -121,7 +121,7 @@ class MyApp extends StatelessWidget {
 
       quickActions.setShortcutItems(<ShortcutItem>[
         const ShortcutItem(
-            type: 'demo', localizedTitle: 'Demo', icon: 'flutter_dash_black'),
+            type: 'demo', localizedTitle: '发一言', icon: 'flutter_dash_black'),
       ]);
     }
   }

@@ -44,6 +44,7 @@ class _PoemVideoPlayerState extends State<PoemVideoPlayer> {
         body: Container(
           alignment: Alignment.center,
           child: FijkView(
+            height: MediaQuery.of(context).size.height,
             player: player,
           ),
         ));