Summary:
The state of the playground was stores in a hash appended to the URL. However, tinyURL ignores the hash part of the URL. For this reason, we are using the search part of the URL instead.
Before: `yogalayout.com/playground#ey...`
After: `yogalayout.com/playground?ey...`
Reviewed By: davidaurelio
Differential Revision: D14722638
fbshipit-source-id: ed135f60269e9136bb850c4c661bd88f8ee19323
bfc6319daa