SIMSBIOHUB-593: Add constraint for a user to have only one role per Project

[mauberti-bc]

Links to Jira Tickets

https://apps.nrs.gov.bc.ca/int/jira/browse/SIMSBIOHUB-593

Description of Changes

• Added unique constraint on (system_user_id, project_id) in project_participation table, so project members can have only one role in a Project
• Updated the project-participants service to only update records if the user's role has changed; do nothing if the role hasn't changed (deletes and inserts are the same)
• UI styling changes to the Project participant control

[github-actions]

Openshift URLs for the PR Deployment:

• App Route: https://biohubbc-app-1307-af2668-dev.apps.silver.devops.gov.bc.ca/
• Api Route: https://biohubbc-api-1307-af2668-dev.apps.silver.devops.gov.bc.ca/
• Pods: https://console.apps.silver.devops.gov.bc.ca/k8s/ns/af2668-dev/pods?name=1307

[codecov]

Codecov Report

Attention: Patch coverage is 72.72727% with 9 lines in your changes missing coverage. Please review.

Project coverage is 49.21%. Comparing base (a3cb8a7) to head (c566954).

Files	Patch %	Lines
api/src/services/project-participation-service.ts	84.00%	1 Missing and 3 partials ⚠️
app/src/components/user/UserRoleSelector.tsx	60.00%	0 Missing and 2 partials ⚠️
...c/features/projects/view/components/TeamMember.tsx	0.00%	2 Missing ⚠️
...c/features/projects/components/ProjectUserForm.tsx	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1307      +/-   ##
==========================================
+ Coverage   49.18%   49.21%   +0.02%     
==========================================
  Files         639      639              
  Lines       17687    17707      +20     
  Branches     2778     2787       +9     
==========================================
+ Hits         8699     8714      +15     
+ Misses       8410     8409       -1     
- Partials      578      584       +6     

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[NickPhura]

✔️

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud