• Improve the list view of Folder permissions.
• Fix: Folder permissions were disabled for descendants, if parent folder
  has type set to CHILDREN.
• The input field for Folder changes from a standard HTML select element to
  a very wide autocomplete field, showing the complete path in Filer.
• Fix: Upload invalid SVG file.
• Add support for Python-3.10.
• Switch theme for readthedocs to Furo.
• Fix: 404 error when serving thumbnail.
• Experimental support for Django-4.