Move BiteSelection Top Buttons to Header in Landscape

[Raidakarim]

In landscape mode of BiteSelection Page, a lot of vertical space is “wasted” on Locate Place and Done Eating, when those buttons could potentially be in the empty space of the header (only in landscape mode). It’s not critical path, but is worth us keeping in mind for a future change.

[Raidakarim]

Amal's suggestions for implementation:

1. Delete PlateLocator.jsx — we will no longer have a specific plate locator, and instead only have a generic teleop interface. That generic teleop interface should be in the LiveVideoModal, so that way the user can close it and still stay on the same state. Add the arrow keys from PlateLocator to the LiveVideoModal.
2. For DoneEating, always being in the header needs much further thought. If the robot is already moving and the user clicks DoneEating, what should happen? If it should cancel the previous action, that should be implemented. And what if DoneEating is clicked in a non-motion state? Then it shouldn't cancel the action. Further, the checkmark icon does not clearly communicate “click this when you’re done eating.” And finally, adding this really crowds up the header in portrait mode, which makes it confusing and not look good in my opinion.