Summary by cubic

Fixes duplicate calendar sync calls by scoping and reusing data in calendar settings. Reduces unnecessary API requests and speeds up onboarding and settings pages.

• Bug Fixes
  • Pass connectedCalendars to DestinationCalendarSettingsWebWrapper and SelectedCalendarsSettingsWebWrapper, using initialData to avoid extra queries.
  • Scope queries to eventType only when needed; reuse user-level data otherwise.
  • Simplify selected calendar retrieval with direct filtering; remove unused repository helper.
  • Clean up conditional rendering in CalendarListContainer to prevent repeated fetches.
  • Align schema typing (nullish eventTypeId) and handler return types; minor map/flatMap and typing tweaks.

^{Written for commit 94a67e2. Summary will update on new commits.}