Merge pull request #1632 from fufesou/flutter_desktop_fix_fullscreen

flutter_desktop: fix fullscreen

flutter/lib/desktop/pages/remote_tab_page.dart

@@ -93,7 +93,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
           border: Border.all(color: MyTheme.color(context).border!)),
       child: Scaffold(
           backgroundColor: Theme.of(context).backgroundColor,
-          body: DesktopTab(
+          body: Obx(() => DesktopTab(
                 controller: tabController,
                 showTabBar: fullscreen.isFalse,
                 onWindowCloseButton: handleWindowCloseButton,
@@ -139,7 +139,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
                     );
                   }
                 }),
-          )),
+              ))),
     );
     return Platform.isMacOS
         ? tabWidget