Restructure Manage folder

[JV0812]

Purpose of this pull request

This pull request is to restructure the manage folder to enhance the UX.

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

https://sumologic.atlassian.net/browse/DOCS-671

[jpipkin1]

@JV0812, I'll take another look after you make that one correction.

[jpipkin1]

Approved, @JV0812. Thank you for doing this reorganization! It looks very good. You only have to make updates to a couple of index articles.

[kimsauce]

Hi @JV0812, thank you so much for addressing these much-needed changes! In my comments, I've encouraged combining docs rather than creating new subsections.

For optimal SEO and UX, it's good to keep URL hierarchy shallow (ideally 2-3 levels deep). Deep hierarchies (4+) make content harder to find, increase URL complexity, and reduce discoverability. And ideal URL length is 50 to 60 characters; these tend to perform better.