Large expressions cause visualizations half of screen to be really small

[jaelafield]

Previously, large expressions expanded so much that error plot (and others) would be too small to see.

Options to fix: make center divide draggable so plot/expression table portions can be expanded/shrunk (may be a valuable feature regardless), or put limit on size of expressions table

[jaelafield]

This problem may already be fixed, though see new issue

[jaelafield]

Edit to above comment ^^ problem not fixed :)

Example problematic expression:
sqrt(x+1) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - ((sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x)) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) sqrt(x+1) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x) - sqrt(x))

() are problematic, the many sqrt(x+1) - sqrt(x) - sqrt(x)... expression on it's own doesn't have a LaTeX issue.

Breaks TeX in expression table:

This additionally breaks TeX on landing page:

(Separate issue with expression in spec header.)

[elmisback]

I hacked a quick fix for this