feat: Special behavior for target stop on combined stop/trip details

[EmmaSimon]

Summary

Ticket: Combined Stop + Trip Details: Target stop is next or current

This includes a few related updates to how stops appear in the upcoming stop list in combined stop + trip details.

• When a vehicle is "Now at" a stop, it is removed from the "x stops away" list, if it's approaching or next, it still shows up in the list
• When the vehicle arrives at the target stop, the vehicle puck in the vehicle card is given the target stop pin icon
• When the vehicle is stopped at a terminal stop, the text is changed to "Waiting to depart", and the predicted departure time is shown in the vehicle card

iOS

• If you added any user-facing strings on iOS, are they included in Localizable.xcstrings?
  • Add temporary machine translations, marked "Needs Review"
    android
    - [ ] All user-facing strings added to strings resource

Testing

Added tests for the updated behavior