Added new page for viewing sites within a folder

src/popup/app/vault/vaultController.js

@@ -115,7 +115,12 @@
         };
 
         $scope.viewFolder = function (folder) {
-            // TODO: vault folder page
+            $state.go('viewFolder', {
+                folderId: folder.id || '',
+                animation: 'in-slide-left',
+                returnScrollY: getScrollY(),
+                returnSearchText: $scope.searchText
+            });
         };
 
         $scope.clipboardError = function (e) {