fragment-matcher generated code is wrongly indented

Describe the bug

When using the fragment-matcher plugin against a graphql server this is the result of the generated code.

To Reproduce Steps to reproduce the behavior: use fragment-matcher plugin. Possibly have not fragments to match.

1. My GraphQL schema:

# Put your schema here

2. My GraphQL operations:

# Put your operations here

3. My codegen.yml config file:

overwrite: true
schema: "http://localhost:3000/graphql"
documents: null
generates:
  src/types/graphql-generated.ts:
    plugins:
      - "typescript"
      - "fragment-matcher"