Consume WPJobManager.com notices endpoint and displays them as expected.

[aaronfc]

We need to consume the notices generated in 208-gh-Automattic/wpjobmanager.com and display them accordingly.

Warning You might need to coordinate with the ticket mentioned above if it's still in progress.

Take into account some progress was already made during development of this ticket: https://github.com/Automattic/WP-Job-Manager/pull/2383

Success Criteria:

• [x] Notices endpoint is consumed in a reasonable way (cache / performance).
• [x] The conditions implemented are correctly processed.
• [x] Notices are dismissible or not based on the API response.
• [x] Final design matches the expected one (See https://github.com/Automattic/WP-Job-Manager/issues/2379#issuecomment-1481336928)
• [x] #2399

[github-actions[bot]]

Closed by #2398.