ProjectExplorer: Make the session list in the management dialog sortable

Fixes: QTCREATORBUG-22911
Change-Id: I2110e00428d65f347fa83cd7b11f54084517be9a
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/sessionview.cpp

@@ -63,8 +63,10 @@ SessionView::SessionView(QWidget *parent)
     setSelectionMode(QAbstractItemView::ExtendedSelection);
     setWordWrap(false);
     setRootIsDecorated(false);
+    setSortingEnabled(true);
 
     setModel(&m_sessionModel);
+    sortByColumn(0, Qt::AscendingOrder);
 
     // Ensure that the full session name is visible.
     header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);