Implement PicturesWidget

Create a tab to show the archived pictures. It's far from complete, but
it already does:
* show pictures
* hover
* delete pictures from archive

1 files changed, 1 insertions, 0 deletions

diff --git a/mappingtreemodel.cpp b/mappingtreemodel.cpp
index a79661e..4cd3f29 100644
--- a/mappingtreemodel.cpp
+++ b/mappingtreemodel.cpp
@@ -231,6 +231,7 @@ void MappingTreeModel::populate(){
             getChildrenRecursive(childItem);
         }
         setRoot(rootItem);
+        emit needExpansion();
     }
 }