- rename config block mail_server to mail_config
- rename smtp server settings
- move mail notification settings to mail_config
- improve navigation templates
- prepare routes for user management
- add package.json for npm/npx
- update to fomantic-ui
- move ui files to ui directory
- add UI build documentation to README.md
- add ui target to Makefile
- add addPrefix handler in boardvoting.go to allow the same /static/
prefix for static resources
This commit adds a new database table user_roles to prepare for the
introduction of a voter management system. All existing enabled voters
are added to the VOTER role.