Miniflux 2.0.27

• Add spellcheck="false" to input fields
• Refactoring of entry, feed, category, and user validation
• Avoid stripping tags for entry title
• Add the possibility to subscribe to feeds with the Android Share menu
• API improvements:
  • Change feed creation request to allow setting most fields via API
  • Allow regular users to change settings via API
  • Make user fields editable via API
  • Renaming non-existent category via API should return a 404
• Update Systemd service file:
  • Add capability CAP_NET_BIND_SERVICE (allow the process to listen on privileged ports)
  • Enable a private /tmp for $CERT_CACHE (required when using Let's Encrypt)
• Update read/star icons to SVGs
• Add autocomplete="username" to HTML forms
• Improve user mass delete to use fewer Goroutines
• Use SQL transaction when creating user sessions and users
• Remove extra column (HSTORE field) from users table and migrate key/value pairs to specific columns
• Bump github.com/prometheus/client_golang from 1.8.0 to 1.9.0
• Bump github.com/lib/pq from 1.8.0 to 1.9.0
• Add styles for <abbr> HTML tag
• Refactor SQL migrations:
  • Avoid embedding SQL files into binary
  • Allow more flexible changes by using Go functions
• Add Server-Timing header to unread page
• Show correct User Agent in input placeholders
• Add autocomplete attribute to login form
• Add Grafana dashboard in contrib folder