Migrate to Vocs

[gskril]

Refactor the docs to use Vocs

• Significantly faster build
• Removes external API dependency for search
• Fetches ENS data live from RPC instead of hardcoding examples (not for everything yet)
• Generates ENSIP pages from ensdomains/ensips
• Simplifies process for adding DAO proposals (sidebar is automatically generated)
• Removes unnecessary git workflows (redundant with Cloudflare Pages GitHub app)
• Generates llms.txt for better integration with AI coding assistants
• Adds support for mermaid diagrams
• Minor content changes and bug fixes
• Minor styling changes and bug fixes

I had to do a hacky patch to Vocs' search indexing, but will be able to remove it once wevm/vocs#265 is resolved upstream.

Need to resolve wevm/vocs#267

[gskril]

Pending search fixes in wevm/vocs#265

[Arachnid]

This is fine with me, but I don't understand the docs repo enough to be a good reviewer here.