* Remove inline styling (#279)
- Remove the JS styling to prevent CSP violations.
- Add "display: none;" CSS rule for the default class "is-hidden".
* Increase the specificity of the hidden class (#279)
* Include "is-hidden" class in utils section of base style sheet (#279)
* Add top level selector for hiding Choices inputs (#279)
### This is the problem:
the `$choices-button-icon-path` needed to be changed for use with Weppack and I still had some complications when building my project.
### This is my solution:
The icons can be encoded and used directly in the stylesheet. This makes it easier to customize and removes 2 dependencies.
You can then customize `$choices-icon-cross` and `$choices-icon-cross-inverse` with one of your one data or asset.
