feat: basic search

[ricokahler]

releases @Jesperpaulsen's basic search with a few style tweaks. it's under the 3 dot menu

[vercel[bot]]

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🔍 Inspect: https://vercel.com/ricokahler/sanity-super-pane/6DJmRZt63dc4QvHnXr7aBbHwscaL
✅ Preview: https://sanity-super-pane-git-feat-basic-search-ricokahler.vercel.app

[github-actions[bot]]

:tada: This PR is included in version 1.0.0-alpha.7 :tada:

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: