MNTOR-4298 - Announcements ADR

[codemist]

References:

Jira: MNTOR-4298

Description

Introduces a Fluent UI section and accompanying documentation to the Announcements admin page, giving Product and QA teams clearer context and improving usability for this feature.

Screenshot (if applicable)

Not applicable.

How to test

Checklist (Definition of Done)

• Localization strings (if needed) have been added.
• Commits in this PR are minimal and have descriptive commit messages.
• I've added or updated the relevant sections in readme and/or code comments
• I've added a unit test to test for potential regressions of this bug.
• If this PR implements a feature flag or experimentation, I've checked that it still works with the flag both on, and with the flag off.
• If this PR implements a feature flag or experimentation, the Ship Behind Feature Flag status in Jira has been set
• Product Owner accepted the User Story (demo of functionality completed) or waived the privilege.
• All acceptance criteria are met.
• Jira ticket has been updated (if needed) to match changes made during the development process.
• Jira ticket has been updated (if needed) with suggestions for QA when this PR is deployed to stage.

[github-actions]

Preview URL 🚀 : https://blurts-server-pr-5866-mgjlpikfea-uk.a.run.app

[codemist]

Pretty safe dependency built for tooling around fluent:

It’s designed to parse, analyze, process, and serialize Fluent files.