Latex, Image, and Audio uploads

[manningwu07]

To do:

• Mobile design (Im gonna make someone else do this cuz this is a waste of time for me)
• Styling - currently its pretty rushed because functionality is the priority right now

[manningwu07]

There are practically 0 tests for edge cases, so please extensively review this code.

[BrilliantDeviation7]

Right now, the article just always saves to '/article-creator.' Because there aren't any articles right now, there needs to be a way to create a new article.

[BrilliantDeviation7]

There is also a bug with LaTeX where the fraction bar is gray:

[manningwu07]

Right now, the article just always saves to '/article-creator.' Because there aren't any articles right now, there needs to be a way to create a new article.

resolved; updated firebase rules onto the code (was not aligned with what my actual firebase rules are)

[manningwu07]

There is also a bug with LaTeX where the fraction bar is gray:

resolved