Mobile: creating a card with tag acts like Shift-Enter was pressed

Per https://discord.com/channels/857305113936134204/857724063903252530/882034356246437929 from @kordumb.

I reproduced too on iPhone:

  • Start creating a card
  • Hit [[ to invoke tag browser
  • Tap on a tag
  • Hit Return
  • Observe that a new card is created that is connected to the first card, and the card is indented. This is behaving as if you hit Shift-Enter on desktop, but you didn’t.