Upgrade to Docusaurus v3

[jasikpark]

https://docusaurus.io/blog/releases/3.0

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[jasikpark]

i'm a bit confused about why i get a type error locally:

❯ pnpm typecheck         

> nebula-docs@0.0.1 typecheck /Users/calebjasik/Git/defined.net/nebula-docs
> tsc

node_modules/@docusaurus/plugin-content-docs/src/sidebars/types.ts:228:3 - error TS2344: Type '"id" | "title" | "frontMatter" | "source" | "sourceDirName" | "sidebarPosition" | "unversionedId"' does not satisfy the constraint '"description" | "id" | "title" | "frontMatter" | "source" | "sourceDirName" | "sidebarPosition" | keyof LastUpdateData | "version" | "slug" | "permalink" | "draft" | "unlisted" | "editUrl" | "tags"'.
  Type '"unversionedId"' is not assignable to type '"description" | "id" | "title" | "frontMatter" | "source" | "sourceDirName" | "sidebarPosition" | keyof LastUpdateData | "version" | "slug" | "permalink" | "draft" | "unlisted" | "editUrl" | "tags"'.

228   | 'id'
      ~~~~~~
229   | 'unversionedId'
    ~~~~~~~~~~~~~~~~~~~
... 
233   | 'sourceDirName'
    ~~~~~~~~~~~~~~~~~~~
234   | 'sidebarPosition'
    ~~~~~~~~~~~~~~~~~~~~~

Found 1 error in node_modules/@docusaurus/plugin-content-docs/src/sidebars/types.ts:228

 ELIFECYCLE  Command failed with exit code 2.

but not in CI? not worried about it though, since it's visually fine. just something to sort if it's a problem.