TF-2160 Use loading attribute replace IntersectionObserver

(cherry picked from commit 88362cab421f0962dc0103bd165d70850668043e)

core/lib/presentation/views/html_viewer/html_content_viewer_on_web_widget.dart

@@ -4,7 +4,6 @@ import 'dart:math' as math;
 
 import 'package:core/presentation/extensions/color_extension.dart';
 import 'package:core/presentation/utils/html_transformer/html_template.dart';
-import 'package:core/presentation/utils/html_transformer/html_utils.dart';
 import 'package:core/presentation/views/html_viewer/html_viewer_controller_for_web.dart';
 import 'package:core/utils/app_logger.dart';
 import 'package:flutter/cupertino.dart';
@@ -171,7 +170,7 @@ class _HtmlContentViewerOnWebState extends State<HtmlContentViewerOnWeb> {
       minHeight: minHeight,
       minWidth: minWidth,
       styleCSS: tooltipLinkCss,
-      javaScripts: webViewActionScripts + scriptsDisableZoom + HtmlUtils.scriptLazyLoadImage,
+      javaScripts: webViewActionScripts + scriptsDisableZoom,
       direction: widget.direction);
 
     return htmlTemplate;

core/lib/presentation/views/html_viewer/html_content_viewer_widget.dart

@@ -68,7 +68,6 @@ class _HtmlContentViewState extends State<HtmlContentViewer> {
     _htmlData = generateHtml(
       widget.contentHtml,
       direction: widget.direction,
-      javaScripts: HtmlUtils.scriptLazyLoadImage
     );
   }
 
@@ -81,7 +80,6 @@ class _HtmlContentViewState extends State<HtmlContentViewer> {
       _htmlData = generateHtml(
         widget.contentHtml,
         direction: widget.direction,
-        javaScripts: HtmlUtils.scriptLazyLoadImage
       );
     }
   }