feat: fav topic

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/video/reply/controller.dart

@@ -21,6 +21,14 @@ class VideoReplyController extends ReplyController<MainListReply>
       vsync: this, duration: const Duration(milliseconds: 100))
     ..forward();
 
+  late final anim = Tween<Offset>(
+    begin: const Offset(0, 2),
+    end: Offset.zero,
+  ).animate(CurvedAnimation(
+    parent: fabAnimationCtr,
+    curve: Curves.easeInOut,
+  ));
+
   void showFab() {
     if (!_isFabVisible) {
       _isFabVisible = true;

lib/pages/video/reply/view.dart

@@ -167,13 +167,7 @@ class _VideoReplyPanelState extends State<VideoReplyPanel>
             bottom: MediaQuery.of(context).padding.bottom + 14,
             right: 14,
             child: SlideTransition(
-              position: Tween<Offset>(
-                begin: const Offset(0, 2),
-                end: Offset.zero,
-              ).animate(CurvedAnimation(
-                parent: _videoReplyController.fabAnimationCtr,
-                curve: Curves.easeInOut,
-              )),
+              position: _videoReplyController.anim,
               child: FloatingActionButton(
                 heroTag: null,
                 onPressed: () {