fix(deps): update dependency @astrojs/starlight to v0.30.2 (#454)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@astrojs/starlight](https://starlight.astro.build)
([source](https://redirect.github.com/withastro/starlight/tree/HEAD/packages/starlight))
| [`0.30.1` ->
`0.30.2`](https://renovatebot.com/diffs/npm/@astrojs%2fstarlight/0.30.1/0.30.2)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@astrojs%2fstarlight/0.30.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@astrojs%2fstarlight/0.30.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@astrojs%2fstarlight/0.30.1/0.30.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@astrojs%2fstarlight/0.30.1/0.30.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>withastro/starlight (@&#8203;astrojs/starlight)</summary>

###
[`v0.30.2`](https://redirect.github.com/withastro/starlight/blob/HEAD/packages/starlight/CHANGELOG.md#0302)

[Compare
Source](https://redirect.github.com/withastro/starlight/compare/@astrojs/[email protected]...@astrojs/[email protected])

##### Patch Changes

-
[#&#8203;2702](https://redirect.github.com/withastro/starlight/pull/2702)
[`02d16f3`](https://redirect.github.com/withastro/starlight/commit/02d16f3638db609501897c5e3647cc20eb5ec142)
Thanks [@&#8203;HiDeoo](https://redirect.github.com/HiDeoo)! - Fixes an
issue with autogenerated sidebars when using Starlight with Astro's new
Content Layer API with directories containing spaces or special
characters.

-
[#&#8203;2704](https://redirect.github.com/withastro/starlight/pull/2704)
[`fd16470`](https://redirect.github.com/withastro/starlight/commit/fd164704b25ec5c000a2765eb0930b87e9a4e61e)
Thanks [@&#8203;delucis](https://redirect.github.com/delucis)! - Fixes
display of focus indicator around site title

</details>

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