remove disfunctional jekyll-sitemap plugin; add sitemap.xml and liqui…

[erikspears]

…d templating to update it dynamically; update sitemap exclusion syntax is affected files

Branching Reminders

• For core code changes, create a branch off develop
• For product documentation changes, create a branch off main
• Always name your branch in a way that clearly describes your proposed changes

Description

• Remove the jekyll-sitemap plugin (it was not longer working)
• Add a sitemap.xml file with Liquid templating language to update dynamically when we publish
• Update the sitemap exclusion entries in the frontmatter of affected pages

Related Issue(s)

DS-3128

Testing and Validation

Type of Change

• Bug fix or other non-breaking change that addresses an issue
• New Feature / Enhancement (non-breaking change that add or improves functionality)
• New Feature (breaking change that is not backwards compatible and/or alters current functionality)
• Documentation (change to product documentation or README.md only)