major bug fixes

lib/screens/browse_controls.dart

@@ -290,6 +290,11 @@ Future<_Picked<T>?> _showPicker<T>(
     context: context,
     backgroundColor: TimbreColors.background,
     isScrollControlled: true,
+    // isScrollControlled removes the default height cap; constrain to 75% of
+    // the window so a long genre/year list never fills the entire screen.
+    constraints: BoxConstraints(
+      maxHeight: MediaQuery.of(context).size.height * 0.75,
+    ),
     builder: (ctx) => SafeArea(
       child: Padding(
         padding: const EdgeInsets.symmetric(vertical: TimbreSpacing.lg),