Traverse Screen case insensitive searching

[ktgd]

PR Creator Checklist

Ensure you've checked the following before submitting your PR:

• You've discussed making your changes with a member of the dev team per contributing rules in the README
• Your changes are free of any lint errors
• Your changes are free of any typescript errors
• You've tested your changes

Summary

Makes searches case insensitive on the traverse screen

Screenshots

If the UI has been changed, include screenshots.
We will not review your PR without screenshots if they are applicable.

Test Plan

1. Use a capitalized search term to find a community with only lowercase