Large file bugfixes fix

[ItIsJordan]

Adds a new endpoint for specifically selecting individual data tables to avoid duplicate selecting of data, and allow specific table data selecting, where previously all table data was returned.

Fixes a number of bugs introduced in pull request #733:

• LaTeX encoding would not render before the full table is loaded.
• Duplication of value display headers for tables appears incorrectly
• Fixes triggering of multiple requests on the large file loading button where previous table requests are repeated.
• Fixes double loading of the YAML file
• Fixes JSON linking for individual tables broken by the large file flag

Closes #756.

[coveralls]

coverage: 83.321% (+0.05%) from 83.268% when pulling 9fb788dae3468dd00a8cc9caf0b3c2bb10b4952a on large-file-bugfixes-fix into bfa7bf40fd671a47eb2d1123ce0ee7ac774f9af6 on main.