Fork JS improvements

Recently we launched the Fork 3.0 version and a lot has changed, but there's more to it than meets the eye.

We included some javascript adjustments to improve the consistency and the performance of the code. Shortly after, I did a small presentation on these improvements to the Fork contributors:

If you have any feedback on the adjustments made, please feel free to contact us or make a contribution yourself on Github and help us make Fork CMS even better!