Consider adding links to keycloak instance

[blcham]

There are multiple places within the app where user management was disabled in keycloak profile, but it is available in internal authorization profile.

The goal of this ticket is revise places where we could add links/buttons to open keycloak instance instead having no UI at all.

Places where it should be considered:

• "Add new user" button in view of institution (see Strange UI for management of users in keycloak deployment #176) -- this could navigate to an appropriate page of keycloak, or some other solution?
• View of user's profile

Note that this is related to the existence of specific roles in keycloak (e.g. role to edit own profile, role to edit profiles of other users). We might use inheritance of keycloak roles (e.g. rm-impersonate role should inhere from keycloak role impersonate) to achieve this. Thus i consider this ticket to be blocked by #202

A/C:

• it is decided if/how to extend UI to include links to keycloak
• it is implemented

[blcham]

Blocked by #202