v0.10.3 - Stable Release

Stable build of CAMusic for Android.

Install

1. Download camusic-0.10.3.apk below (Android 12 / API 31+).
2. Allow install from unknown sources, then open it. Installs over 0.10.x (versionCode 48) — same signing key, so your servers, credentials and downloads survive.

Fixes

• Transport buttons now align with the play button. They were
  centred against the whole quality-chip-plus-play-button column, which
  sat them visibly above the play button's true centre.
• A library-switch race that could connect to the wrong server.
  Switching libraries from the quick-switch overlay could call connect
  before the new server was persisted to settings, so the app rebuilt the
  connection with the new server's address but the old server's kind and
  credentials — Local sometimes landed on Navidrome, and Navidrome or
  Jellyfin could show an empty library.
• The Backup & Restore settings row is clickable again — it had a
  leftover no-op tap handler from before it was wired to open in place.

Reverted from 0.10.2

The larger slider touch targets shipped in 0.10.2 caused regressions
elsewhere and are reverted pending a cleaner pass; sliders are back to
their previous size and behaviour for this release.