// FIRST SCREEN - ACCESS CODE
// POST REQUEST
{
 "accessCode": String
}
// SERVER RESPONSE
{
 "valid": String -> "yes" or "no"
 "role": String -> "Moderator" or "Doctor" or "Participante"
}
// BASED ON response.role RENDER CORRECT SCREEN WITH PERMISSIONS

// PARTICIPANTE SENDS QUESTION REQUEST (POST REQUEST)
{
 "question": String
}

// MODERATOR RECEIVES QUESTION AND CLICKS APPROVE OR DENY (POST REQUEST)
{
 "moderatorResponse": String -> "approved" or "denied"
}