Summary:
Apparently we were not even enforcing missing semicolons in our typescript code. This adds the lint rules and fixes some of them.

Added some ignores and disabled that we can address later.

Test Plan: Tested on webpack and existing tests.

Reviewers: michelle, nserrino, philkuz, #engineering

Reviewed By: michelle, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D5396

GitOrigin-RevId: fbfacf0c1406270fdf8afd54475f59e34d5aee1a