Rill Docs backbone, will update photos and contents next week

[royendo]

Summary

Looking to add a page for Rill Data onto the ClickHouse Docs! Also, fix a few of the redirects that take the user back to Rill docs, instead of the new page

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here: https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx

[vercel]

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[CLAassistant]

All committers have signed the CLA.

[Blargian]

Hi @royendo, is this ready for review now?

[royendo]

hello @Blargian ! Let me double check, we're making a few changes on our side with the connection UI so just want to be sure :)