Fix for when TOTP starts with 0

PyOTP wants the token as a string, by passing it as an int leading
0s get stripped and verification fails

app/models.py

@@ -90,7 +90,7 @@ class User(db.Model):
 
     def verify_totp(self, token):
         totp = pyotp.TOTP(self.otp_secret)
-        return totp.verify(int(token))
+        return totp.verify(token)
 
     def get_hashed_password(self, plain_text_password=None):
         # Hash a password for the first time