Restore the password strength bar status on clearing the password input.

Problem/Motivation

So while working on Replace confirm password field with show/hide functionality i noticed that if we delete the password entered in the password filed the password strength bar does not get restored to the default expected behaviour.Here's the screenshot

Steps to reproduce

1) Go the user edit form.
2) Enter anything in the input password field.
3) Delete the entire entered value.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet