Add Optional 2FA Support (#61)

* Add TOTP MFA Support

* Add Passkey MFA Support

It's not impossible I missed some minor cleanup, but most things make sense and there isn't a lot of obvious duplication anymore.

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Co-authored-by: Bruno Bernardino <me@brunobernardino.com>

routes/signup.tsx

@@ -69,7 +69,9 @@ export const handler: Handlers<Data, FreshContextState> = {
 
       const user = await UserModel.create(email, hashedPassword);
 
-      if (await AppConfig.isEmailVerificationEnabled()) {
+      const isEmailVerificationEnabled = await AppConfig.isEmailVerificationEnabled();
+
+      if (isEmailVerificationEnabled) {
         const verificationCode = await VerificationCodeModel.create(user, user.email, 'email');
 
         await sendVerifyEmailEmail(user.email, verificationCode);