v0.23.1

Fixed

• The rate limit now applies to the API only. Pages and scripts of the web interface are never blocked, so the app no
  longer shows a JSON error page instead of the interface.
• Adding a large folder at once (e.g. hundreds of files) no longer floods the server: live updates are bundled and the
  interface reloads once instead of once per file.
• Graph view with many notes: from 150 notes the layout settles before it is shown, movements are damped more strongly,
  unconnected notes drift gently to the centre and the view follows smoothly instead of jumping.