Converting from GraphQL Playground to Graphiql

Hello all!

I think that it would have a net positive if we swapped the default graphql playground to graphiql

one of the big benefits would be also adding in some graphiql plugins such as graphiql-code-exporter how I see this working out is it could help the end-user to build a service, or a cell, or even hooks inside the playground that they could just be copied over to there code and it should just work!

here is the post that onegraph wrote about building the plugin blog post. (worth reading)

I think it would be worth converting to Graphiql for this plugin to help speed up the connecting later!

What does everyone think?