- drop migration 2022052601_drop_unused_decisions_colums because it was implicitly part of an earlier migration
- add /health endpoint for database health check
- add tests for the health check endpoint
- add tests for middleware secureHeaders, logRequest and tryAuthenticate
- add models.UserModel.CreateUser method
- configure session cookie security
- setup flash message handling in newTemplateData
- show flash message in base.html
- add flash message for new motion
- 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