Docs: refactored manage users and permissions content (#44343)

* initial refactor

* initial draft for teams

* restructed topics, added front matter

* modified aliases

* removes old files

* removed files

* initial refactor

* initial draft for teams

* restructed topics, added front matter

* modified aliases

* removes old files

* removed files

* final xrefs updates

* xref adjustment

* copy updates

* copy and content updates to about, add to org, add user, admin

* copy updates to remove user from org

* update org vs server admin section names, cross-link

* cross-link add and invite users to org

* add remaining cross-links between org and server admin

* add dashboard permissions table

* add permissions information to teams

* add copy invite instructions to invite management

* tweaks and link updates

* incorporated PM feedback

* fixed xrefs

* yarn prettier

* fix codespell

* combined teams and dashboard permissions content

Co-authored-by: Mitchel Seaman <mitchel.seaman@gmail.com>

docs/sources/getting-started/getting-started.md

@@ -55,6 +55,6 @@ The following topics are of interest to Grafana server admin users:
 
 - [Grafana configuration]({{< relref "../administration/configuration.md" >}})
 - [Authentication]({{< relref "../auth/overview.md" >}})
-- [User permissions and roles]({{< relref "../permissions/_index.md" >}})
+- [User permissions and roles]({{< relref "../administration/manage-users-and-permissions/about-users-and-permissions.md" >}})
 - [Provisioning]({{< relref "../administration/provisioning.md" >}})
 - [Grafana CLI]({{< relref "../administration/cli.md" >}})