TF-2362 Automatically detect that the screen is not fully filled to load more emails

Signed-off-by: dab246 <tdvu@linagora.com>
(cherry picked from commit 73c36be3a5c972c2da1a04d09e3eb493e0732f6e)

lib/features/thread/presentation/thread_view.dart

@@ -423,19 +423,11 @@ class ThreadView extends GetWidget<ThreadController>
         scrollInfo.metrics.pixels == scrollInfo.metrics.maxScrollExtent &&
         !controller.loadingMoreStatus.value.isRunning
     ) {
-      _handleLoadMoreEmailsRequest();
+      controller.handleLoadMoreEmailsRequest();
     }
     return false;
   }
 
-  void _handleLoadMoreEmailsRequest() {
-    if (controller.isSearchActive) {
-      controller.searchMoreEmails();
-    } else  {
-      controller.loadMoreEmails();
-    }
-  }
-
   Widget _buildLoadMoreButton(BuildContext context, LoadingMoreStatus loadingMoreStatus) {
     if (((controller.canLoadMore && !controller.isSearchActive) ||
         (controller.canSearchMore && controller.isSearchActive)) &&
@@ -445,7 +437,7 @@ class ThreadView extends GetWidget<ThreadController>
           style: OutlinedButton.styleFrom(
             backgroundColor: Theme.of(context).scaffoldBackgroundColor,
           ),
-          onPressed: _handleLoadMoreEmailsRequest,
+          onPressed: controller.handleLoadMoreEmailsRequest,
           child: Text(
             AppLocalizations.of(context).loadMore,
             style: Theme.of(context).textTheme.bodyMedium?.copyWith(