• Handle empty thumbnail_url when refreshing covers (arkon)
• Tweak history card design (arkon)
• Avoid replacing covers with null when updating library (sort of closes #3194) (arkon)
• Group advanced settings (arkon)
• Make metadata updating optional (arkon)
• Move categories up in library settings (arkon)
• Update drag icon (arkon)
• Fix recycled icon in source migration list when source isn't installed (arkon)