fix: increase json size limit from 100kb to 20mb

src/serve-mocks.js

@@ -33,7 +33,7 @@ const SLASH_ALIAS = '---'
 
 const app = express()
 app.use(cors())
-app.use(express.json())
+app.use(express.json({ limit: '20mb' }))
 
 /**
  *