chore: bump version to 1.2.3+125 [ci skip]

Seven of the eight points reported after the first real build.

- Favourites overflow menu was clipped to one letter per item by a
  constraints property that sizes the popup, not the button
- Bottom bar painted a square ink splash over the icon, and its lift,
  dim, icon size and label snapped while the balloon slid
- Station artwork fallback is now shared by every surface instead of the
  flat rows painting a plain coloured square
- Vacation ranges can be edited and deleted
- Settings row titles no longer wrap into cut lines
- Sleep timer sheet shows the live countdown
- The last-played station survives a restart, shown stopped

Spacing review is done for Buscar only; the rest of the app is still
outstanding.

Tests: 903 -> 926.

pubspec.yaml

@@ -1,7 +1,7 @@
 name: pluriwave
 description: "Radio mundial con ecualizador, reconocimiento de canciones y UI premium"
 publish_to: 'none'
-version: 1.2.1+123
+version: 1.2.3+125
 
 environment:
   sdk: ^3.7.0