Implement the frontend Pin input for send money 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 PIN input
    • The input can come from the biometrics
    • The input can come from the user directly
  • The send money API should be faked until the backend is ready