Orynivo 0.30.3

[v0.30.3]

Added

• The review dialog for missing artist images can cancel the complete
  assignment run.
• Extended manual artist-image search with an editable artist query and the
  same provider order as batch discovery: Fanart.tv first when a key is
  configured, then Wikimedia Commons when Fanart.tv has no usable result.

Fixed

• Masked the Last.fm API key in Settings so it is no longer displayed as
  readable text, matching the Fanart.tv credential field.