Handle duplicate fingerprint error

What does this MR do?

If a triggered or acknowledged alert has a fingerprint which matches a resolved alert, we do not allow the resolved alert to be opened. This shows an appropriate error for the user outlining remediation steps. This error is visible from both the alert detail view and the alert list view.

Target branch is temporarily !36024 (merged), as this requires changes from that MR. MR will be updated to point to master once that MR merges.

Related issue: #223151 (comment 377436695)

Screenshots

Duplicate_open_alerts

Detail view	List view

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #223151 (closed)