Add support for confirm password fields

[outfoxxed]

This pull request adds support for confirm password fields in sign-up pages.

Current behavior

The current behavior when using a sign up page will fill the username and password, but not any confirm password fields. This is annoying because it forces the user to re-open keepassdx to copy the autogenerated password, and paste it in the form.

New behavior

The new behavior attempts to detect confirm password fields by checking for additional password fields past the first one. This cuts out the step of re-opening keepassdx and copying the password.

Testing

I tested this on my own website and the google.com account creation page.
I was not able to find any native apps on my phone that had a confirm password field.

[AnonymousWP]

Why has this not been merged yet nor responded to?

[J-Jamet]

If you look carefully, I did indicate that this will be addressed in version 4.1.0, when a global pass will be made on autofill.

[AnonymousWP]

If you look carefully, I did indicate that this will be addressed in version 4.1.0, when a global pass will be made on autofill.

Ah okay, didn't see any reference in this issue, so that's why I didn't catch it.