Here we protect the user from themselves if they accidentally
enter their snikket credentials into the wrong instance by
preventing the form from even being submitted and by showing a
nice error message.
- Avoid fighting import cycles using a factory function
- Collapse useless subpackages into simple modules
- Move flask plugins / infrastructure in own module
- Refactor how blueprints are used to localize information about
URL routing to app factory
- Create a colour palette
- Create a sizing schema for paddings and fonts
- Implement basic form controls
- Create a theme demo page
- Apply the theme to the existing pages.
Still TODO is the final font selection.
