The create form and Settings/calendar-manager are sibling overlays in one Box,
with Settings drawn above the form. An external 'new event' request (QS tile,
launcher shortcut, widget) set the create state correctly but rendered the form
underneath an open Settings, forcing the user to back out first.
Dismiss the covering overlays (Settings, calendar manager, detail/edit, import)
when handling a Create or OpenDate nav request, so the requested destination is
revealed on top. Fixes the same latent bug for the shortcut and widget.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>