CodeSandbox examples broken, and workaround also broken

[dantasse]

Basically reopening #1570. Thanks to @dlong500 for explaining this and describing how to work around it by disabling the "Sandbox beta editor" option. Unfortunately, that option no longer exists, so as far as I can tell, all the examples are inaccessible.

[yusijs]

There is a workaround for it - add moduleview=1 to the url params

see codesandbox/codesandbox-client#8350

[dlong500]

Yes, the workaround was just released in the last couple weeks. A small PR to the downshift examples index page can update things to work with the new parameter. I'll look into a PR soon.