TF-3236 Display SearchSnippet in search result

lib/features/thread/presentation/mixin/base_email_item_tile.dart

@@ -122,6 +122,8 @@ mixin BaseEmailItemTile {
       return RichTextBuilder(
         textOrigin: email.getEmailTitle(),
         wordToStyle: query?.value ?? '',
+        preMarkedText: email.sanitizedSearchSnippetSubject,
+        ensureHighlightVisible: true,
         styleOrigin: TextStyle(
           fontSize: 13,
           color: buildTextColorForReadEmail(email),
@@ -155,6 +157,8 @@ mixin BaseEmailItemTile {
       return RichTextBuilder(
         textOrigin: email.getPartialContent(),
         wordToStyle: query?.value ?? '',
+        preMarkedText: email.sanitizedSearchSnippetPreview,
+        ensureHighlightVisible: true,
         styleOrigin: const TextStyle(
           fontSize: 13,
           color: AppColor.colorContentEmail,

lib/features/thread/presentation/thread_view.dart

@@ -425,7 +425,8 @@ class ThreadView extends GetWidget<ThreadController>
   bool _handleScrollNotificationListener(ScrollNotification scrollInfo) {
     if (scrollInfo is ScrollEndNotification &&
         scrollInfo.metrics.pixels == scrollInfo.metrics.maxScrollExtent &&
-        !controller.loadingMoreStatus.value.isRunning
+        !controller.loadingMoreStatus.value.isRunning &&
+        scrollInfo.metrics.axisDirection == AxisDirection.down
     ) {
       controller.handleLoadMoreEmailsRequest();
     }