Move vendor files

manage.html

@@ -168,8 +168,8 @@
   <script src="js/sections-util.js"></script>
   <script src="js/storage-util.js"></script>
 
-  <script src="sync/vendor/dropbox/dropbox-sdk.js" async></script>
+  <script src="vendor/dropbox/dropbox-sdk.js" async></script>
-  <script src="sync/vendor/zipjs/zip.js" defer></script>
+  <script src="vendor/zipjs/zip.js" defer></script>
   <script src="sync/compress-text.js" defer></script>
   <script src="sync/cross-browser-functions.js" defer></script>
   <script src="sync/import-export-dropbox.js" async></script>

sync/compress-text.js

@@ -3,7 +3,7 @@
 'use strict';
 
 onDOMready().then(() => {
-  zip.workerScriptsPath = '/sync/vendor/zipjs/';
+  zip.workerScriptsPath = '../vendor/zipjs/';
 });
 
 /**