Resize wobble body to fit contents
This PR makes the containing element ('wobble-body') expand to fit the elements inside of it. This allows features like a margin at the bottom of the page, and blend modes with the background to be implemented. (also implemented in this PR)
It also does some housekeeping of the "wobble overlay" code, and moves the logic to a context provider.
The logic for scaling the content on mobile is now contained in the class 'scalable-container'
Edited by olivia jack