feat(mobile): confirm dialogs and Vacay sheets in the common sheet style

The shared confirm sheet (44 places) gets the icon tile with the title, a
warning icon for destructive questions, and the sheets' 42 px buttons with
the danger colour on a destructive confirm. The dashboard's and the
collections' own confirm dialogs now use it.

Vacay invite, shared calendars and settings get the icon tile header; the
settings' rows separated by hairlines become cards on the inner surface, as
the trip settings' sections.

client/scripts/theme-baseline.json

@@ -181,9 +181,9 @@
   "mobile/screens/collections/MCollShareSheet.tsx": 14,
   "mobile/screens/collections/MCollSheetKit.tsx": 5,
   "mobile/screens/collections/MCollTripPickerSheet.tsx": 4,
-  "mobile/screens/collections/MCollections.tsx": 21,
+  "mobile/screens/collections/MCollections.tsx": 18,
   "mobile/screens/dashboard/MDashWidgets.tsx": 22,
-  "mobile/screens/dashboard/MDashboard.tsx": 36,
+  "mobile/screens/dashboard/MDashboard.tsx": 31,
   "mobile/screens/dashboard/MNewTripSheet.tsx": 12,
   "mobile/screens/dashboard/MUserMenu.tsx": 7,
   "mobile/screens/journey/MJourney.tsx": 10,
@@ -279,10 +279,10 @@
   "mobile/screens/trip/tabs/filesModel.ts": 5,
   "mobile/screens/trip/tabs/tabChrome.tsx": 12,
   "mobile/screens/vacay/MVacay.tsx": 17,
-  "mobile/screens/vacay/MVacayInviteSheet.tsx": 9,
+  "mobile/screens/vacay/MVacayInviteSheet.tsx": 8,
   "mobile/screens/vacay/MVacayMonth.tsx": 3,
-  "mobile/screens/vacay/MVacaySettingsSheet.tsx": 35,
-  "mobile/screens/vacay/MVacayShareSheet.tsx": 11,
+  "mobile/screens/vacay/MVacaySettingsSheet.tsx": 34,
+  "mobile/screens/vacay/MVacayShareSheet.tsx": 10,
   "mobile/screens/vacay/vacayDayModel.ts": 1,
   "pages/AtlasPage.tsx": 32,
   "pages/DashboardPage.tsx": 1,