Fix: UI: make statistics for Objects display 0 instead of (null)

Display "0" instead of "(null)" for object stats count when there are no objects.

Pull Request: https://projects.blender.org/blender/blender/pulls/123036

source/blender/editors/space_info/info_stats.cc

@@ -828,7 +828,7 @@ void ED_info_draw_stats(
   }
   else if (!(object_mode & OB_MODE_SCULPT)) {
     /* No objects in scene. */
-    stats_row(col1, labels[OBJ], col2, 0, nullptr, y, height);
+    stats_row(col1, labels[OBJ], col2, stats_fmt.totobj, nullptr, y, height);
     return;
   }