Calendula didn't declare the intent filters launchers and the system use for
calendar actions, so it never appeared in the "default calendar app" chooser —
on every platform, not just GrapheneOS (issue #9). Android exposes no API for an
app to set itself default, so registering these filters is the only way users can
pick it from the system picker.
Adds to MainActivity:
- MAIN + APP_CALENDAR — the "open the calendar app" action the OS/launchers use.
- VIEW on content://com.android.calendar/time/<epochMillis> and the time/epoch
mime type — a launcher/clock date tap. The provider's time Uri is parsed into a
LocalDate and opened on the day view, rooted over the default home view (a new
sourceless WidgetNavRequest.OpenDate). The .ics import path now ignores the
calendar provider host so a date tap isn't mistaken for a file to import.
Bumps to 2.11.1.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
