[FEAT] Added validation to AzureAD

[eva-vashkevich]

Summary

Fixes #10771

Added validation to AzureAD configuration

Occurred changes and/or fixed issues

• Fixed validation for AzureAD
• Replaced labels with translations

Technical notes summary

Had to use fvExtraRules() for validation since this.model() is used to set the values and it is undefined when data() is run, so default validation would be using this.value instead, which is incorrect.

Areas or cases that should be tested

• Go to Users & Authentication -> Auth provider ->AzureAD
• 'Enable' button should be disabled before any information is entered
• 'Enable' button should be enabled once Tenant ID, Application ID, and Application Secret are populated
• Switch 'Endpoints' to 'Custom'
• 'Enable' button should be disabled before any information is entered
• 'Enable' button should be enabled once Endpoint, Graph Endpoint, Token Endpoint, and Auth Endpoint are populated
• Press enable and finish the setup. Azure AD should be successfully enabled.
• Check that the steps from above apply to edit.

Areas which could experience regressions

Editing the list of users who have access can be affected

Screenshot/Video

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes

[rak-phillip]

I think this looks good overall. The only comments that I left are based on a few observations that I made during review.

[rak-phillip]

LGTM 🚀