v0.25.0

Added

• Plugin catalog, similar to HACS in Home Assistant: under Settings → Plugins, browse, install, update and remove
  plugins from GitHub releases. The official repo BasaltNotes-Plug is
  preconfigured; any other GitHub repo can be added by URL. Updates are shown, a warning appears before installing, and
  plugins with a server part ask for a server restart. Packages are not reviewed or signed.
• New plugin interfaces: presets (templates for new vaults), profiles (rules for curator, inbox and chat), roles
  (account roles) and registerHomeSection (sections on a notebook's home page). GET /presets lists the templates.

Changed

• BasaltNotes is now universal: everything specific to D&D moved into the built-in plugin "D&D": campaigns with home
  page and timeline, the player view and player accounts, the D&D template, the curator's rules and the example vault.
• New installations start with one vault "Notizen" and the D&D plugin switched off. The example vault is only offered
  while a plugin provides one.
• Existing D&D vaults keep working without any step: the plugin switches itself on while a vault uses the dnd
  template. Notes, API paths and the campaign and visibility fields stay the same.
• Managing plugins now requires server admin rights; an admin level on a single notebook is no longer enough.