Remove unnecessary ESLint overrides

There are a fair amount of overrides in our ESLint configuration file:

- We have some rules we've disabled because they were inconvenient to use at the time. We should correct the usages so that we can remove these overrides.
- We have some we've disabled because they were automatically enabled via an upgrade to our ESLint config packages, and we didn't have time to adjust the code to match. We should make the proper adjustments so that we can remove these overrides.
- We have some rules whose behavior we've modified because it made more sense. We should consider copying these changes into the ESLint config monorepo.

Start by locating the ESLint configuration file and cataloging the existing overrides, then inspect the code affected by each rule. Done means unnecessary overrides are removed after the corresponding usages are corrected, with behavior changes that belong in the ESLint config monorepo identified for consideration.

Written by the indexing model from the issue text.