issue21

[haggqvist459]

Complete sign up process

• Make player tag a required field when signing up.
• instead of redirecting from sign up to profile, redirect to sign in and require a user to verify the email before allowing sign in
• Create a document in the user's collection in firestore, with the user's player tag and UID etc.

[mahaluo]

player tag is now required and a check will be made with the API to ensure it is valid redirecting to sign in now after sign up, email verification is required before users can sign in user collection in firestore created with username, playertag, createdAt date and role