update db offline settings

[iamfortune]

Docs Issue: DOC-13682

PR to update the db offline for SGW

Preview URLs:

• Database offline
• Resync

You will need the Docs Team credentials on Confluence.

[sarahlwelton]

I'd like to see the information architecture of this page sorted before you merge this. I don't think we're quite hitting the mark right now.

I'd recommend for Take Database Offline/Online:

• Some introductory information, that includes the "use cases" content that you have further down the page, try to better incorporate the state diagram into the explanation.
• A heading for "Automatically Taking a Database Offline" - provide the context and link to the REST API request to bring the database back online.
• A heading for "Take a Database Offline Manually" - with a clear procedure, prerequisites, and considerations. You can divide this further with subheadings for Persistent vs. NonPersistent config.
• A heading for "Take a Database Online Manually" - with a clear procedure, prerequisites, and considerations. You can divide this further with subheadings for Persistent vs. NonPersistent config.

For the Resync topic, try to single source the procedure and link to your "Taking a Database Online/Offline" information instead of writing it out again.

I'd also recommend using proper headings for the procedures so they appear in the on-page TOC.

Please, try to use the page templates more when constructing these pages and pay attention to how you're structuring your information: https://confluence.issues.couchbase.com/wiki/spaces/DOCS/pages/1989443613/Documentation+Templates