Implement the frontend page for recipient's data input using PPA

[stephane-segning]

• User story: User story: As a PP User, I'd like to send money to another PP User using the Smartphone - Use-case v1 #19
• Description
  • Implement the Recipient's data input
    • The phone number can come from a QR-Code
    • The phone number can come from the normal text input
  • The send money API should be faked until the backend is ready