## Issue
- First batch of @iansltx 's work of cleaning up lint warnings #43387
## Description
- Quick PR review and grabbed as many confirmed low-risk quick wins as I
could `git checkout lint-cleanup <file/path/1> <file/path/2>`
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
This release contains internal code improvements with one minor UI
tweak:
* **Style**
* Dropdown menu background color adjusted for clearer contrast in action
lists
* **Refactor**
* Improved type safety across the codebase with stricter TypeScript
annotations
* Removed unused imports and constants to reduce code clutter
* Enhanced React hook dependency arrays for more consistent component
behavior
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Rachel Perkins <rachel@Rachels-MacBook-Pro.local>
Co-authored-by: Ian Littman <iansltx@gmail.com>
