Move messaging.js file & references

edit.html

@@ -3,7 +3,7 @@
     <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
 
     <script src="js/dom.js"></script>
-    <script src="background/messaging.js"></script>
+    <script src="js/messaging.js"></script>
     <script src="js/prefs.js"></script>
     <script src="js/localization.js"></script>
     <script src="content/apply.js"></script>

index.html

@@ -4,7 +4,7 @@
   <title i18n-text-append="optionsHeading">Stylus </title>
   <link rel="stylesheet" href="options/index.css">
   <script src="js/dom.js"></script>
-  <script src="background/messaging.js"></script>
+  <script src="js/messaging.js"></script>
   <script src="js/localization.js"></script>
   <script src="js/prefs.js"></script>
   <script src="content/apply.js"></script>

manage.html

@@ -122,7 +122,7 @@
   </template>
 
   <script src="js/dom.js"></script>
-  <script src="background/messaging.js"></script>
+  <script src="js/messaging.js"></script>
   <script src="js/prefs.js"></script>
   <script src="content/apply.js"></script>
   <script src="js/localization.js"></script>

manifest.json

@@ -20,7 +20,7 @@
   ],
   "background": {
     "scripts": [
-      "background/messaging.js",
+      "js/messaging.js",
       "background/storage.js",
       "js/prefs.js",
       "background/background.js",

popup.html

@@ -56,7 +56,7 @@
   </template>
 
   <script src="js/dom.js"></script>
-  <script src="background/messaging.js"></script>
+  <script src="js/messaging.js"></script>
   <script src="js/localization.js"></script>
   <script src="js/prefs.js"></script>
   <script src="content/apply.js"></script>