Fix tests comma-dangle eslint rule [MAILPOET-1028]

tests/javascript/newsletter_editor/blocks/image.spec.js

@@ -9,7 +9,7 @@ define([
       beforeEach(function () {
         global.stubChannel(EditorApplication);
         global.stubConfig(EditorApplication, {
-          blockDefaults: {},
+          blockDefaults: {}
         });
         model = new (ImageBlock.ImageBlockModel)();
       });
@@ -55,7 +55,7 @@ define([
       it('triggers autosave when any of the attributes change', function () {
         var mock = sinon.mock().exactly(7).withArgs('autoSave');
         EditorApplication.getChannel = sinon.stub().returns({
-          trigger: mock,
+          trigger: mock
         });
 
         model.set('link', 'http://example.net');
@@ -81,11 +81,11 @@ define([
               height: '2345px',
               styles: {
                 block: {
-                  textAlign: 'right',
-                },
-              },
+                  textAlign: 'right'
+                }
+              }
             }
-          },
+          }
         });
         var model = new (ImageBlock.ImageBlockModel)();
 
@@ -125,7 +125,7 @@ define([
           model = new (ImageBlock.ImageBlockModel)({
             link: 'http://example.org/somepath',
             src: 'http://example.org/someimage.png',
-            alt: 'some alt',
+            alt: 'some alt'
           });
           view = new (ImageBlock.ImageBlockView)({model: model});
           view.render();
@@ -163,7 +163,7 @@ define([
       before(function () {
         global.stubChannel(EditorApplication);
         global.stubConfig(EditorApplication, {
-          blockDefaults: {},
+          blockDefaults: {}
         });
         global.stubImage(newWidth, newHeight);
         model = new (ImageBlock.ImageBlockModel)();