Space never presses a focused button; chat toasts open the chat; plain wheel always scrolls the page

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/desktop/lib/src/schedule/ui/schedule_page.dart

@@ -501,7 +501,6 @@ class _SchedulePageState extends State<SchedulePage> {
       (byDay[DateTime(l.year, l.month, l.day)] ??= []).add(e);
     }
     return HScroll(
-      wheel: false,
       controller: _scroll,
       builder: (c) => ListView.separated(
         key: const ValueKey('schedule-board'),