feat(webui): Add dashboard filter.

- Convert Object properties to and array for backends and frondends for each providers.
- Remove unused parameters.
- Add filter.

webui/src/app/version/version.controller.js

@@ -1,7 +1,7 @@
 'use strict';
 
 /** @ngInject */
-function VersionController($scope, $interval, $log, Version) {
+function VersionController($scope, Version) {
   Version.get(function (version) {
     $scope.version = version;
   });