We need to move the grafana workspaces setup to IaC so that we can easily manage the configuration, as right now it's being setup manually.

Acceptance criteria
Grafana workspacess and access managed through IaC.

ToDo

• add grafana workspaces to the IaC
• re-deploy the workspace instance for every environment
• clean up old manual manually created workspaces
• change/remove the user accounts that is being used for deployment at the moment
• remove grafana_auth, grafana_url, grafana_prometheus_id from IaC
• (optional) move grafana workspace access to the user-management repository
• Confirm and clean up users