[Web] Show read-only user-attributes as locked

[exalate-issue-sync]

Description

User Stories

• As an Admin I want to see which user-attributes I can edit so that I dont try to edit them in vain.

Value

• part of enterpise feature: Connect external IDP to ocis

Acceptance Criteria

• user-attributes that are given by an external IDP are visualized in read-only style (ex. username, first & last name, password, role, groups, etc)
  • text-forms, dropdowns and passwordfield are disabled and show a "lock" icon
  • note: group assignments are not part of this story. see OCIS-3541.

Definition of ready

[ ] everybody needs to understand the value written in the user story
[ ] acceptance criteria has to be defined
[ ] all dependencies of the user story need to be identified
[ ] feature should be seen from an end user perspective
[ ] user story has to be estimated
[ ] story points need to be less then 20

Definition of done

• Functional requirements
  [ ] functionality described in the user story works
  [ ] acceptance criteria are fulfilled
• Quality
  [ ] code review happened
  [ ] CI is green
  [ ] critical code received unit tests by the developer
  [ ] automated tests passed (if automated tests are not available, this test needs to be created and passed
• Non-functional requirements
  [ ] no sonar cloud issues