Merge changes I0df46558,Ib93db1e0,I6e7e9fee,Ibcbfac31,I63c2a798 into stable-3.0

* changes:
  Add PolyGerrit UI for creating a service user
  Modify the detail-screen to allow editing the service user
  Add PolyGerrit UI for showing service user details
  Add PolyGerrit UI to list service users
  Add eslint config