Stop HTK server listening on non-localhost interfaces

Author: pimterry

src/httptoolkit-server.ts

@@ -128,6 +128,10 @@ export class HttpToolkitServer {
     }
 
     async start() {
-        await this.graphql.start({});
+        await this.graphql.start(<any> {
+            // Hacky solution that lets us limit the server to only localhost,
+            // and override the port from 4000 to something less likely to conflict.
+            port: { port: 45457, host: 'localhost' }
+        });
     }
 };