Update quill image sample

Author: Ellet

example/lib/presentation/quill/samples/quill_images_sample.dart

@@ -15,6 +15,7 @@ final quillImagesSample = [
       'image': true
           ? 'https://upload.wikimedia.org/wikipedia/commons/b/b6/Image_created_with_a_mobile_phone.png'
           // ignore: dead_code
+          // TODO: Doesn't work on web, finds out why
           : 'https://helpx.adobe.com/content/dam/help/en/photoshop/using/convert-color-image-black-white/jcr_content/main-pars/before_and_after/image-before/Landscape-Color.jpg'
     },
     'attributes': {