Shuttle Tracker Network onboarding UI

[buddyskian]

Created a warming page that, when Gabe adds the code for it, will pop up on the update and tell users about the new shuttle tracker network and how it works.

[aidan-n-flaherty]

I would recommend adding a 'tap to continue' feature in addition to the automatic progression, with the ability to decline to join the network only appearing after the user has reached the last piece of text. This would allow faster readers to not lose patience, while also making it easy enough (but not too easy) to skip past the messages and not contribute to the Shuttle Tracker Network.