TF-2323 Use position to load more emails when sort by Subject & Sender

Signed-off-by: dab246 <tdvu@linagora.com>
(cherry picked from commit 847a56bfd331dc29f05493a861fb6f21da2b2cde)

lib/features/thread/data/network/thread_api.dart

@@ -31,6 +31,7 @@ class ThreadAPI {
     AccountId accountId,
     {
       UnsignedInt? limit,
+      int? position,
       Set<Comparator>? sort,
       Filter? filter,
       Properties? properties
@@ -44,6 +45,8 @@ class ThreadAPI {
 
     if (limit != null) queryEmailMethod.addLimit(limit);
 
+    if (position != null) queryEmailMethod.addPosition(position);
+
     if (sort != null) queryEmailMethod.addSorts(sort);
 
     if (filter != null) queryEmailMethod.addFilters(filter);