* Cleanup extracted files
* Pagination and fixes
* Add migration for attachments to MigrateLibraryDb
* Unify attachment handling
* Don't extract again if files were already extracted
* Fix MKS attachment extraction
* Always run full extraction on mks
* Don't try to extract mjpeg streams as attachments
* Fallback to check if attachments were extracted to cache folder
* Fixup
596b635511