accessibility of tables

We need to make sure that the table displaying the users reseat is accessible with accessibility software. right now, we have a situation where the tables are reading but the header cell information isn't being conveyed properly to the screen readers.

[chrissphinx]

Possibly due to missing scope="row" where necessary? See here: https://webaim.org/techniques/tables/data#headers

Relevant template code here:
https://github.com/ccowmu/CClub-snacks-/blob/master/templates/index.html#L17