webpack - various ameliorations

assets/config.json

@@ -0,0 +1,18 @@
+{
+  "context": "assets",
+  "entry": {
+    "main": [
+      "./scripts/main.js",
+      "./styles/main.scss"
+    ],
+    "customizer": [
+      "./scripts/customizer.js"
+    ]
+  },
+  "output": {
+    "path": "dist",
+    "publicPath": "/app/themes/sage/dist/"
+  },
+  "devUrl": "http://example.dev",
+  "devPort": 3000
+}

assets/scripts/main.js

@@ -1,5 +1,3 @@
-import "../styles/main.scss";
-
 import $ from 'jquery';
 import Router from './util/router';