Remove constraints for password field

[theRoughCode]

We want to remove all the constraints for the password field but leave the length requirement.

Basically, delete:

format: {
      pattern: '(?=.*?[0-9])(?=.*?[A-Z])(?=.*?[a-z])[a-zA-Z0-9]+',
      message: "must contain a capital letter, a lowercase letter, and a number"
    },