Improved support for mobile devices #10
Description
Currently, mobile devices are simply not supported at all. The basic editor idea doesn't really work on any of these platforms, but it would still be interesting to be able to just view the examples working. For this we need a separate view of the playground which only shows the 3d view, but hides all the editing features. You should still be able to browse the gallery of course and open documents from there.
Additionally, some of the technologies used by the playground might not have wide availability across mobile devices, but I'm really not an export. For example, maybe localStorage, indexedDB or history can't be assumed to be generally supported and we'd need to implement some fallbacks for those cases/