Can get older posts on latest posts page

lib/helpers/posts_helper.dart

@@ -39,12 +39,13 @@ const _APIUserAccessMap = {
 class PostsHelper {
   /// Get the list of latest posts. Return the list of posts or null in case of
   /// failure
-  Future<PostsList> getLatest() async {
+  Future<PostsList> getLatest({int from = 0}) async {
     final response = await APIRequest(
       uri: "posts/get_latest",
       needLogin: true,
       args: {
-        "include_groups": true.toString()
+        "include_groups": true.toString(),
+        "startFrom": from.toString(),
       }
     ).exec();