[demo] Fix typo, add log

Author: ivmartel

tests/pacs/viewer.ui.brush.js

@@ -41,12 +41,13 @@ test.toolFeaturesUI.Brush = function (app, _toolConfig) {
     res.appendChild(controlDiv);
 
     // if no segmentations, use default
-    if (!document.getElementById('segmentations-list')) {
+    if (!document.getElementById('segmentation-list')) {
       const features = {
         brushMode: 'add',
         selectedSegmentNumber: 1,
         createMask: true
       };
+      console.log('set tool features [add-default]', features);
       app.setToolFeatures(features);
     }