add basic keyboard navigation to search

[JFrankfurt]

Came back to this after some sleep and it looks like it still needs work. Don't merge as is.

Looks like the lint:fix script added useEffect dependencies that broke the intended behavior.

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[ianlapham]

Thanks for working on this regardless - been on the to do list forever. Let me know you have questions

[JFrankfurt]

@ianlapham finally came back to this. The vercel review app is still the initial commit though..