Hot fix on passphrase utility

[reyraa]

Expected behaviour

• The steps in passphrase generator utility should be a random number between 1.7 and 3.2
• The random index of missing word should always be in over 0 and less than the length of words i passphrase (11).

Actual behaviour

• The step definition logic in passphrase generator utility is wring. creating steps bigger than 100%.
• The random index of missing word in Passphrase validator of passphrase component some times is out of the valid range

Steps to reproduce

Try generating a passphrase. the result vividly is not unique. and sometimes the missing word is out of the range