Fix PPIX generation bug

src/PublishWindow.vala

@@ -272,6 +272,9 @@ namespace Publicate {
             loader_status.set_text(@"Publishing…");
             yield do_void_in_bg(() => client.publish(cid, publication, identity_list.selected_identity));
 
+            loader_status.set_text(@"Rebuilding index…");
+            yield do_void_in_bg(() => client.rebuild_index(cid, identity_list.selected_identity));
+
             stack.visible_child = complete;
             loader_pulsing = false;
         }