[#77745832] Searchers see fewer duplicate/similar images in results

- Added album detector to do basic set detection on photos
- Search now picks most relevant photo from an album instead of showing all potential matches
- Installed sidekiq-failures to track job failures in Sidekiq dashboard
- Fixed copy/paste error in README
- Strip machine readable tags like vision:* and extra title/desc whitespace from Flickr photos before indexing