Add testing suite

[abdallahalsamman]

Finally 🎉🎉🎉

Closes #58

We now have a testing suite,

Please make sure to run npm install to install the required dependencies

You can run the tests using npm run test, and once you're changes are the right changes, you can approve the using npm run test:approve

To add your own tests, look at tests/stories.js and add your story.

[abdallahalsamman]

@trezy for number 1, I've have npm run build; http-server storybook-static -s -p 6007 in package.json so the port is always 6007 for running the built storybook-static website.

for number 2, do you have repro steps so can I reproduce the error?

[abdallahalsamman]

@guastallaigor I'll see about it tomorrow, thanks for the review