JabRef shows the references and citations of an entry

OpenAlex will be added soon: #15023

That offers a direct view of the results in the web - e.g., https://api.openalex.org/works?filter=cites:Aw4400269071

It should be possible for the user to see that URL.

Idea: org.jabref.logic.importer.fetcher.citation.CitationFetcher is extended to

URI getCitationApiUri(BibEntry entry)
URI getReferencesApiUril(BibEntry entry)

Offer a context menu on "References cited" and "References that cite" with "Open API URL in browser" - USe org.jabref.gui.desktop.os.NativeDesktop#openBrowser(java.net.URI, org.jabref.gui.frame.ExternalApplicationsPreferences).

(URL could also be used if that is better)

If possible, the new methods should be used by the CitationFetcher implementations

Aim: Clean, short code