Allow ignoring review requests

[onbjerg]

Unfortunately, sometimes I am added as a reviewer or tagged on PRs in repositories I didn't even know existed, and they linger on Mergeable:

I'm not really sure how this got here, it's under "Incoming reviews", but I am not actually a reviewer (and I don't know the repository): ullashb/opensource.guide#10

[pvcnt]

Ignoring pull requests would definitely be a useful feature!

In this instance though, it's puzzling me why you would see it in the "Incoming reviews" section. If you are using the default section, it means this PR is surfaced by one of the following search requests: either is:pr is:open -author:@me review-requested:@me or is:pr is:open -author:@me involves:@me. Could you try those in GitHub's UI and see which one fetches the PR (if any)?

[onbjerg]

It's involves:@me, most likely a spam bot tagged me in one of the comments that were hidden