DESENG-473: Restore role assignment functionality

[VineetBala-AOT]

Issue #: https://apps.itsm.gov.bc.ca/jira/browse/DESENG-473

Description of changes:

• Utilize the CSS API for efficient management of composite roles. This involves the assignment, reassignment, or removal of users from the composite roles of TEAM_MEMBER, REVIEWER, IT_ADMIN, or IT_VIEWER.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the met-public license (Apache 2.0).

[codecov-commenter]

Codecov Report

Attention: 167 lines in your changes are missing coverage. Please review.

Comparison is base (1bac246) 71.82% compared to head (927f38c) 71.27%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2385      +/-   ##
==========================================
- Coverage   71.82%   71.27%   -0.56%     
==========================================
  Files         509      509              
  Lines       16915    17063     +148     
  Branches     1288     1288              
==========================================
+ Hits        12149    12161      +12     
- Misses       4526     4662     +136     
  Partials      240      240              

Flag	Coverage Δ
metapi	85.00% <32.35%> (-1.45%)	⬇️
metweb	59.13% <50.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
met-api/src/met_api/config.py	97.29% <ø> (+0.03%)	⬆️
met-web/src/apiManager/endpoints/index.ts	100.00% <ø> (ø)
...ponents/userManagement/userDetails/UserDetails.tsx	93.33% <100.00%> (ø)
...ts/userManagement/userDetails/UserStatusButton.tsx	57.89% <100.00%> (ø)
met-web/src/models/user.ts	100.00% <100.00%> (ø)
...nents/comments/admin/reviewListing/Submissions.tsx	81.81% <50.00%> (ø)
...rc/components/comments/admin/textListing/index.tsx	80.00% <50.00%> (ø)
...components/userManagement/listing/AddUserModal.tsx	44.82% <0.00%> (ø)
...s/userManagement/listing/UserManagementListing.tsx	64.51% <0.00%> (ø)
...nents/userManagement/listing/ReassignRoleModal.tsx	68.42% <50.00%> (ø)
... and 11 more

... and 1 file with indirect coverage changes

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud