Use local node_module

Author: BookOfGreg

test/dummy_webpacker2/app/javascript/packs/application.js

@@ -1,5 +1,5 @@
 var ctx = require.context("components", true)
-var ReactRailsUJS = require("../../../../../react_ujs/index")
+var ReactRailsUJS = require("react_ujs")
 ReactRailsUJS.useContext(ctx)
 var React = require("react")
 

test/dummy_webpacker2/app/javascript/packs/server_rendering.js

@@ -1,5 +1,5 @@
 // By default, this pack is loaded for server-side rendering.
 // It must expose react_ujs as `ReactRailsUJS` and prepare a require context.
 var componentRequireContext = require.context("components", true)
-var ReactRailsUJS = require("../../../../../react_ujs/index")
+var ReactRailsUJS = require("react_ujs")
 ReactRailsUJS.useContext(componentRequireContext)