Simplify the configuration of newApolloServer

[darahayes]

Description

The newApolloServer function in server/apolloServer.js accepts several configuration arguments and uses them to instantiate a new Apollo Server instance. A lot of these configuration items originate in server/config/index.js but if you take the following lines, There are lots of things being remapped which could have been defined correctly in server/config.js in the first place.

To Do

• Simplify the configuration such that the newApolloServer function is more concise This can be achieved by moving things like the playground config back into server/config/index.js
• If possible reduce the arity (number of args) of the newApolloServer function and update any place where it's used.