v0.6.43

Fixed

• Video tiles whose sources have a short edge below 512 px get a grid thumbnail at native resolution instead of the low-resolution cover
  (c0cf6a4).
• Library video tiles refresh after thumbnail backfill finishes, replacing cached low-resolution covers with the generated grid thumbnails
  (e9235a4).

Full changelog: v0.6.42...v0.6.43