Improve responsiveness for payment-widget

[MantisClone]

Problem

The responsiveness of the payment-widget is not ideal, despite the attempt to improve responsiveness in #106.

[MantisClone]

@Fpinto29 Can you please describe or post a video of the responsiveness issues you've observed?

[MantisClone]

@Fpinto29 shared:

I tested it again, and it is actually good. When you click in an input field, it zooms in, and then the checkout seems bigger than the page, but zooming out solves the problem. Let's close this. My mistake.

[MantisClone]

Closing as No Problem 🤙