Add copying of repository list for variant analyses

[koesie10]

This adds the ability to copy the repository list for variant analyses from the context menu in the query history.

Checklist

• CHANGELOG.md has been updated to incorporate all user visible changes made by this pull request.
• Issues have been created for any UI or other user-facing changes made by this pull request.
• [Maintainers only] If this pull request makes user-facing changes that require documentation changes, open a corresponding docs pull request in the github/codeql repo and add the ready-for-doc-review label there.

[charisk]

Can these tests be in no-workspace or minimal-workspace at all?

[koesie10]

Yes, I think they could be moved to minimal-workspace. However, I don't really see what the advantage would be of splitting these tests over multiple files and test suites. I think it would actually make it harder where something is being tested, although I would also be happy to move them over if there are advantages to that.

[charisk]

My understanding is that CLI tests are slower (and maybe flakier?) because they have to set up the whole CLI. We generally need to tidy up around the area so I'm happy for us to leave things where they are for now, but I was curious about whether there was a reason we chose to put them here. I guess the reason is that other VariantAnalysisManager tests are in CLI tests.