v0.4.0

• Image previews in the trash list: trashed image files show a
  thumbnail instead of a generic row, trashed pages show their
  first image as a cover, and the details dialog shows a large
  preview of both. Thumbnails are generated lazily as JPEG (works
  on any server-side GD build, whatever the source format), cached
  below the cache root, streamed through a Panel route behind the
  access permission and removed together with their item. The
  source format is detected by content sniffing, never by file
  extension; SVG is deliberately excluded from streaming. All
  other items show the same type-based icons and colors as Kirby's
  own file panels. Disable via the new previews option