Sync Fixes

-Improved LaTeX support, it now renders in Build correctly. However,
there is still a problem when trying to reload it.
-Sharable urls can be created and load the correct gltn file. This is
linked to the actual file so include features such as syncing the file
right after opening the shared link
-Better in-session syncing
-Fixed a bug causing a massive storage leak, leading files to grow to
10x the normal file size and tying down Chrome immensely (Using 2x - 3x
normal memory)
-Added a few new LaTeX commands
-Fixed some LaTeX bugs (but not all of them)