update: classes for avatar, logo and flex added + css for elements from main header are outside the styles for that header

Gaëlle Morin authored 5 years ago and Jean-Baptiste Pasquier committed 5 years ago

- css added or reviewed
- templates added or reviewed (customer, business provider, team)
- modal added and stylised
- routes reviewed
- navbar reviewed (adapted according to the content of the main section
- admin status added
- new staging added.