Remove arrow animation (better app pack UX incoming)

lib/widgets/app_pack_container.dart

@@ -53,91 +53,25 @@ class AppPackContainer extends HookConsumerWidget {
       orElse: () => packs.first,
     );
 
-    // Scroll controller and hint visibility state
-    final scrollController = useScrollController();
-    final showRightHint = useState(true);
-    final hasScrolledOnce = useState(false);
-
-    // Listen to scroll position to hide hint when near end
-    useEffect(() {
-      void listener() {
-        if (!scrollController.hasClients) return;
-        final maxScroll = scrollController.position.maxScrollExtent;
-        final currentScroll = scrollController.offset;
-
-        // Hide hint when scrolled past 20px or near the end
-        if (currentScroll > 20) {
-          hasScrolledOnce.value = true;
-        }
-        showRightHint.value =
-            !hasScrolledOnce.value && currentScroll < maxScroll - 20;
-      }
-
-      // Check initial state after first frame
-      WidgetsBinding.instance.addPostFrameCallback((_) {
-        if (scrollController.hasClients) {
-          final maxScroll = scrollController.position.maxScrollExtent;
-          // Hide hint if content doesn't overflow
-          showRightHint.value = maxScroll > 20;
-        }
-      });
-
-      scrollController.addListener(listener);
-      return () => scrollController.removeListener(listener);
-    }, [scrollController]);
-
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         SizedBox(
           height: 48,
-          child: Stack(
-            children: [
-              SingleChildScrollView(
-                controller: scrollController,
-                scrollDirection: Axis.horizontal,
-                padding: const EdgeInsets.only(left: 12, right: 52),
-                child: Row(
-                  children: packs
-                      .map(
-                        (pack) => _PackPill(
-                          pack: pack,
-                          isSelected: selectedId.value == pack.id,
-                          onTap: () => selectedId.value = pack.id,
-                        ),
-                      )
-                      .toList(),
-                ),
-              ),
-              // Right fade gradient with animated chevron
-              if (showRightHint.value)
-                Positioned(
-                  right: 0,
-                  top: 0,
-                  bottom: 0,
-                  width: 56,
-                  child: IgnorePointer(
-                    child: Container(
-                      decoration: const BoxDecoration(
-                        gradient: LinearGradient(
-                          begin: Alignment.centerLeft,
-                          end: Alignment.centerRight,
-                          colors: [
-                            Colors.transparent,
-                            AppColors.darkBackground,
-                            AppColors.darkBackground,
-                          ],
-                          stops: [0.0, 0.5, 1.0],
-                        ),
-                      ),
-                      child: const Align(
-                        alignment: Alignment(0.6, -0.1),
-                        child: _AnimatedScrollHint(),
-                      ),
+          child: SingleChildScrollView(
+            scrollDirection: Axis.horizontal,
+            padding: const EdgeInsets.symmetric(horizontal: 12),
+            child: Row(
+              children: packs
+                  .map(
+                    (pack) => _PackPill(
+                      pack: pack,
+                      isSelected: selectedId.value == pack.id,
+                      onTap: () => selectedId.value = pack.id,
                     ),
-                  ),
-                ),
-            ],
+                  )
+                  .toList(),
+            ),
           ),
         ),
         const SizedBox(height: 16),
@@ -205,81 +139,6 @@ class _SkeletonPill extends StatelessWidget {
   }
 }
 
-/// Animated chevron hint for horizontal scroll discovery
-class _AnimatedScrollHint extends StatefulWidget {
-  const _AnimatedScrollHint();
-
-  @override
-  State<_AnimatedScrollHint> createState() => _AnimatedScrollHintState();
-}
-
-class _AnimatedScrollHintState extends State<_AnimatedScrollHint>
-    with SingleTickerProviderStateMixin {
-  late AnimationController _controller;
-  late Animation<double> _offsetAnimation;
-  late Animation<double> _opacityAnimation;
-
-  @override
-  void initState() {
-    super.initState();
-    _controller = AnimationController(
-      duration: const Duration(milliseconds: 900),
-      vsync: this,
-    )..repeat(reverse: true);
-
-    _offsetAnimation = Tween<double>(
-      begin: 0,
-      end: 6,
-    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
-
-    _opacityAnimation = Tween<double>(
-      begin: 0.7,
-      end: 1.0,
-    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
-  }
-
-  @override
-  void dispose() {
-    _controller.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return AnimatedBuilder(
-      animation: _controller,
-      builder: (context, child) => Transform.translate(
-        offset: Offset(_offsetAnimation.value, 0),
-        child: Opacity(
-          opacity: _opacityAnimation.value,
-          // Stack icons with slight offsets to create bold effect
-          child: SizedBox(
-            width: 20,
-            height: 20,
-            child: Stack(
-              children: [
-                Positioned(
-                  left: 0.5,
-                  child: Icon(
-                    Icons.arrow_forward_ios_rounded,
-                    color: Colors.white.withValues(alpha: 0.7),
-                    size: 20,
-                  ),
-                ),
-                const Icon(
-                  Icons.arrow_forward_ios_rounded,
-                  color: Colors.white,
-                  size: 20,
-                ),
-              ],
-            ),
-          ),
-        ),
-      ),
-    );
-  }
-}
-
 /// Individual pack pill - watches its own author reactively
 class _PackPill extends ConsumerWidget {
   const _PackPill({