fixes: U4-9744 Creating folders from the media picker doesn't work

src/Umbraco.Web.UI.Client/src/views/common/overlays/mediaPicker/mediapicker.controller.js

@@ -61,6 +61,7 @@ angular.module("umbraco")
 
             $scope.submitFolder = function() {
                 if ($scope.newFolderName) {
+                    $scope.creatingFolder = true;
                     mediaResource
                         .addFolder($scope.newFolderName, $scope.currentFolder.id)
                         .then(function(data) {
@@ -69,7 +70,7 @@ angular.module("umbraco")
                                 cacheKey: "__media", //this is the main media tree cache key
                                 childrenOf: data.parentId //clear the children of the parent
                             });
-
+                            $scope.creatingFolder = false;
                             $scope.gotoFolder(data);
                             $scope.showFolderInput = false;
                             $scope.newFolderName = "";

src/Umbraco.Web.UI.Client/src/views/common/overlays/mediaPicker/mediapicker.html

@@ -37,7 +37,7 @@
 
       </div>
 
-      <div class="row umb-control-group" ng-if="!searchOptions.filter">
+      <div class="row umb-control-group" ng-show="!searchOptions.filter">
          <ul class="umb-breadcrumbs">
             <li ng-hide="startNodeId != -1" class="umb-breadcrumbs__ancestor">
                <a href ng-click="gotoFolder()" prevent-default>Media</a>
@@ -64,7 +64,7 @@
                   focus-when="{{showFolderInput}}" />
                </li>
           </ul>
-
+          <div class="umb-loader" ng-if="creatingFolder"></div>
       </div>
 
       <umb-file-dropzone