Melarka 0.2.19

Added

• Hold to fast-forward and rewind in the iPhone and Android apps: holding the next or previous
  button on a car's steering wheel or on headphones scans through the song
  (about 10× at first, 30× after 3 seconds) and it plays on from where you let go. A short press
  still skips to the next or previous song. Rewinding stops at the start of the song; fast-forward
  stops just before its end, so the next song starts as usual.
• Keep the iPhone app signed from a Mac, without SideStore: ios/scripts/resign.sh install
  sets up a background job on a Mac with Xcode. Before the free Apple ID's 7 days run out, and
  while the Mac is unlocked (macOS keeps the Apple ID from Xcode while it is locked), it builds the
  newest release, signs it again and installs it over the app on the phone, by USB or Wi-Fi,
  keeping your data and sign-in. It shows a Mac notification when it needs you. See
  docs/iphone.md, "Re-sign from a Mac".

Changed

• Updated dependencies: newer Go, Node and Alpine base images, Go modules, web libraries
  (React Router 8 among them) and CI actions.