Fix up the Teacher view

[PetalCat]

We need to separate the student and teacher pages.

[lishaduck]

Yep! The current system is split up into lots of small, modular widgets so that they can be on separate pages.
Ideally, this change would also make the teacher page store its state in the URL, rather than in state management.

[lishaduck]

You wanna tackle this next after #193, @ParkerH27?

[lishaduck]

Made a few changes to the surrounding code to make this a tad bit easier.

[PetalCat]

You wanna tackle this next after #193, @ParkerH27?

I guess so.... #193 is brain breaking

[lishaduck]

It's been 2 months. You still up for this? We need to get it done before we present (b/c it's blocking me on some other stuff).