allow Squeezeplay to display date in parentheses next to the album

[kerneljake]

This patch allows Squeezeplay to display the date in parentheses next to the album in Now Playing. This makes it behave similar to Material. No modifications to Squeezeplay are required.

This is my first ever LMS pull request, so I’m looking for feedback and guidance if I’m off the mark here.

test plan:

• Squeezplay (Now Playing widget) on Linux & macOS
  • local FLAC, local mp3, and Radio Paradise interactive FLAC streams - shows year in parentheses correctly
  • Asterisk radio - no effect
• Transporter - no effect
• Squeezer on Android - no effect