Default Registration form does not pop password matching validation

### Issue type

**I'm submitting a ...** (check one with "x")

* [x ] bug report
* [ ] feature request

### Issue description
Registration form does not perform password matching validation even on live demo.
When navigating to the official demo it also doesnt work. https://www.akveo.com/ngx-admin/auth/register
**Current behavior:**
When registering an account with the default registration component and passwords don't match no validation is popped and form submits

**Expected behavior:**
When passwords dont match an error message is popped stating they dont

**Steps to reproduce:**
1. Enter password
2. Enter password that doesn't match
3. Submit Form

Took the below from the registration component so it seems to me there is validation?
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