Use AnimatedSize instead of AnimatedContainer for better animation

Replaced AnimatedContainer with AnimatedSize for the selected styles banner. AnimatedSize properly handles intrinsic height transitions without needing to specify explicit heights, providing smoother and more predictable animations.

Co-authored-by: richardthe3rd <573334+richardthe3rd@users.noreply.github.com>

Author: Copilot

lib/screens/drinks_screen.dart

@@ -894,9 +894,9 @@ class _StyleFilterSheet extends StatelessWidget {
               ),
               const SizedBox(height: 8),
               // Always reserve space for selected styles to prevent list jumping
-              AnimatedContainer(
+              AnimatedSize(
                 duration: const Duration(milliseconds: 200),
-                height: selectedStyles.isNotEmpty ? null : 0,
+                curve: Curves.easeInOut,
                 child: selectedStyles.isNotEmpty
                     ? Container(
                         padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),