- change Message z-index to overlap over Doodle3D logo
- change Message position in DOM so that the Message box is fully visible in the mobile view
many small UI (css) improvements
Merge branch 'feature/printerdriver' of https://github.com/Doodle3D/doodle3d-client into feature/printerdriver

# By peteruithoven
# Via peteruithoven
* 'feature/printerdriver' of https://github.com/Doodle3D/doodle3d-client:
  Disabling prev, next and save buttons for now (code ready to enable/disable according to state) #41