fix(SILVA-546): fixing amplify authentication

[paulushcgcj]

Description

There was an issue related to Amplify that was losing track of the current user session after the page was refreshed. To fix that, I'm refactoring the frontend code to make the authentication handling more streamlined and match the expected react format.

I also removed some code that was not necessary for now

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have read the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

Further comments

---

Thanks for the PR!

Any successful deployments (not always required) will be available below.

Backend: https://nr-silva-441-backend.apps.silver.devops.gov.bc.ca/actuator/health
Frontend: https://nr-silva-41-frontend.apps.silver.devops.gov.bc.ca

Once merged, code will be promoted and handed off to following workflow run.
Main Merge Workflow

[jazzgrewal]

The application does not load in the PR link:

Get the error, most likely failing to load the env variable for the clientId or something related to cognito.

[paulushcgcj]

The application does not load in the PR link: Get the error, most likely failing to load the env variable for the clientId or something related to cognito.

Exactly, it is because I removed some hardcoded values from the application.

[sonarqubecloud]

Quality Gate passed for 'nr-silva-frontend'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
95.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[jazzgrewal]

Awesome, works great now!