main idea:

first of all, NONE of this should effect the spectator pages.
right now, when youre on a rover and its not your turn, you see a preview feed.
- this is annoying if you are ex: trying to sit there and watch something with multiple people on one rover
I want it changed so that if there are less TOTAL drivers than there are rovers, everyone sees full video even when it's not their turn.
- if there are more total drivers than rovers, when its not your turn youll see the preview feed
I also want some UI changes to make it better:
- right now theres a big overlay in the middle of the screen when its not your turn, that explains the preview thing
- I want this moved to the top left corner
- I want it to blink on input, to draw attention to it
- I want it to always show when its not your turn
  - but I only want it to explain the preview thing when its showing the preview
  - the preview exists to save upload bandwith