WD-11706 - feat: display OIDC login form

[huwshimi]

Done

• Display the login for OIDC.

QA

• Visit http://jimm.localhost:8036/auth/logout to make sure you're logged out.
• Go to the dashboard (http://jimm.localhost:8036/).
• You should see a "Log in to dashboard" button.
• Click the button and follow the login flow (depending on whether you're logged into the auth provider you'll either be asked to enter your username/password or you'll just get redirected back to the dashboard).
• At this point you'll see the login screen with an error: "Could not log into controller" which is expected as the controller/model login hasn't been implemented yet.

Details

https://warthogs.atlassian.net/browse/WD-11706

[webteam-app]

Demo

Jenkins

demos.haus

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 97.19%. Comparing base (5531adf) to head (806735a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1770 +/- ## ======================================= Coverage 97.18% 97.19% ======================================= Files 418 422 +4 Lines 23163 23220 +57 Branches 2943 2950 +7 ======================================= + Hits 22512 22569 +57 Misses 651 651 ```

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