Show password rules

[ma-oliveiramarques]

You can add the feature that the user can pick the following options:

• 4 upper case letters
• 4 lower case letters
• 4 special characters
• 4 numbers

Special alert: it's not allowed any space between the characters

In order to achieve 100% password strength, numbers, letters the special characters must not be repeated

And then randomly order all characters so the output passwords be different every time.