fix(roadtrip): the booking a terminal opens has somewhere to open

The day panel owns the transport detail dialog, and in road trip mode the
day panel is not mounted: a terminal row, a ride pill and a map endpoint all
set the booking to show and nothing showed it. The rail brings the dialog
along now. Also drops a translation key nothing read.

shared/src/i18n/ja/roadtrip.ts

@@ -269,6 +269,5 @@ const roadtrip: TranslationStrings = {
   'roadtrip.ride.departure': '出発 {time}',
   'roadtrip.ride.arrival': '到着 {time}',
   'roadtrip.ride.open': '予約を開く',
-  'roadtrip.ride.beThere': '{time} までに到着',
 };
 export default roadtrip;