* Create change-your-password.md

* linked to menu

* Create preferences.md

* Update menu.yaml

* Update preferences.md

* Update docs/sources/administration/preferences.md

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>

* Update docs/sources/administration/change-your-password.md

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>

* Update docs/sources/administration/change-your-password.md

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>

* Update preferences.md

* Update _index.md

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>