LoginScreens implementation

Implement the new LoginScreens as part of #172 (closed).

• login_decision
  • General implementation
  • Reuse login_header/profile_header(?) (Both don't seem quite as reliable as i hoped)
  • Which animation to use?
• login_information
  • General implementation
  • Read over texts
  • Add assets for benefits
• clean up the mess

login_decision	login_information