Docs: updates for file-based menu (#28500)

* initial

* cleanup

* remove bad aliases

* cleanup, fix links

* add docs-file-based-command

* update docs

* update readme

* fix broken links

* fix spelling

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

docs/sources/enterprise/_index.md

@@ -2,11 +2,7 @@
 title = "Grafana Enterprise"
 description = "Grafana Enterprise overview"
 keywords = ["grafana", "documentation", "datasource", "permissions", "ldap", "licensing", "enterprise", "insights", "reporting"]
-type = "docs"
-[menu.docs]
-name = "Grafana Enterprise"
-identifier = "enterprise"
-weight = 100
+weight = 150
 +++
 
 # Grafana Enterprise