[docs] Search: Expo docs results grouping (#23579)

[docs] mark certain UI elements labels as non-crawlable (#23199)

[docs] migrate to new styleguide packages (#21557)

[docs] update Header and navigation Sidebar UIs, improve a11y (#21307)

[docs] Add radix colors (#20397)

# Why

I updated the styleguide to use Radix colors. This PR adds the new
version of styleguide to the docs and changes all the color, shadow, and
border-radius

[docs] Add radix colors (#20397)

# Why

I updated the styleguide to use Radix colors. This PR adds the new
version of styleguide to the docs and changes all the color, shadow, and
border-radius values.

# How

- Very carefully finding + replacing values.
- Also used `tsc` to find spots where I missed.

# Test Plan

I looked through the docs for awhile and fixed up a lot of spots that
did not look correct. However, there may be more spots out there, so
please click through the website and report any color issues that appear
in this PR and not in production.

# Checklist

<!--
Please check the appropriate items below if they apply to your diff.
This is required for changes to Expo modules.
-->

- [x] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [x] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [x] This diff will work correctly for `expo prebuild` & EAS Build (eg:
updated a module plugin).

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[docs] improved search/command menu (#20032)