Updates the docs to work with the website repo - mainly
relative link updates.
Adds a menu.yaml file to build the sidebar menu (no longer
using front matter weight).
* Adding cloudwatch related stuff - images will come later on
* Changes after pr feedback
* Add images
* Update image path
* Remove react migration part - might not be so interesting for our users
* Removing part about curated dashboards since it's not released yet - will be re-added later on
