fix(iframe-events): Support for iframe click events

[rationalthinker1]

Fixes #12, Fixes #47

Pull Request Template

Description

First of all, I have to say, whoever built this is a genius. It is very well divided but yet cohesive and it flows well. However, I was set on creating the iframe functionality myself but it seems like it was already done but the script wasn't applied to all frames, just the top frame. I also removed a reference to elements-to-bind-to as it was suppose to in #39. Btw, this is my first pull request and first time actually contributing to a open source project via coding.

Type of change

• [X] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

All existing test passed. I also tested again the two examples in #12, namely https://giving.kcm.org and https://www.goodmanmfg.com/product-registration

Checklist:

• [X] My code follows the style guidelines of this project. npm run lint passes with no errors.
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [X] New and existing unit tests pass locally with my changes. npm run test passes with no errors.

[tnolet]

@rationalthinker1 this is awesome, and you're making me blush 😊I will review it tomorrow morning and if all good I will push a new release to the Chrome store.

[tnolet]

LGTM and works as described