fix(examples/graphql): update webpack start command
fix(examples/graphql): update webpack start command

Commit that updated webpack:
https://github.com/pubkey/rxdb/commit/d199b9c8f0b13695d4f466cfa2f9a6c275da822a#diff-192ef64589816349604beb98f7a1f5d3d8a5f4b61484f796a8e2a013dcf76da2
Error and solution applied:
https://stackoverflow.com/a/64205610/1850609
pubkey/rxdb,pubkey/rxdb,pubkey/rxdb,pubkey/rxdb,pubkey/rxdb