Fixing handleResize namespacing

LesionTracker/client/components/viewerSection/viewerSection.js

@@ -4,7 +4,7 @@ Template.viewerSection.events({
              return;
          }
  
-         handleResize();
+         window.ResizeViewportManager.handleResize();
      }
  });
 

OHIFViewer/client/components/flexboxLayout/flexboxLayout.js

@@ -1,10 +1,10 @@
 Template.flexboxLayout.events({
     'transitionend .sidebarMenu'(event) {
         if (!event.target.classList.contains('sidebarMenu')) {
-        	return;
+            return;
         }
 
-    	handleResize();
+        window.ResizeViewportManager.handleResize();
     }
 });