FileManager: updated open folder icons

vispa/extensions/file2/static/js/extension.js

@@ -40,7 +40,7 @@ define([
     },
   }, "fileManager", {
     label: "Browse folder",
-    iconClass: "fa-folder",
+    iconClass: "fa-folder-open",
     position: 1,
   }, function(path) {
     return ["file2", "FileMainView", {path: path}];
@@ -50,7 +50,7 @@ define([
   FileHandler2.addExt("single", {
     menuTmpl: {
       label: "Open in new tab",
-      iconClass: "fa-folder",
+      iconClass: "fa-folder-open",
       position: 3,
     },
     check: function check(info) {