1.4.0

New features

• Statistics page: number of games, updates and DLC, total size, space by content and by file format, games up to
  date, missing updates, DLC and games, issues and the largest games.
• Notifications after every synchronization when an update or a DLC of one of your games becomes available: Discord
  webhook, Telegram bot or a generic JSON webhook (ntfy, Home Assistant, n8n, ...). Only new items are reported; the
  settings page can send a test notification.
• Light theme: choose light, dark or automatic (follows the system) from the menu. Dark stays the default and the
  choice is remembered by the browser.

Fixes

• Docker: the container no longer stops when files inside the data folder are mounted read-only (e.g.
  -v /path/prod.keys:/usr/local/share/switch-library-manager-web/prod.keys:ro); it explains when the data folder is
  not writable by PUID/PGID.
• Adding, removing or updating prod.keys rescans the library on the next start, so games that could not be read
  before appear without a manual synchronization.
• The web interface answers right after start; the initial library scan runs in the background with its progress.
• Running without prod.keys is reported as a warning with a hint where to put the file, instead of an error.