KitOptionsPage: Fix layout when showing/hiding kit details

Task-number: QTCREATORBUG-16261
Change-Id: Idf1beedfa427895a54498f1fb4658708ea5e4cc1
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>

src/plugins/projectexplorer/kitoptionspage.cpp

@@ -151,6 +151,9 @@ void KitOptionsPageWidget::kitSelectionChanged()
         m_currentWidget->setVisible(true);
         m_kitsView->scrollTo(current);
     }
+
+    adjustSize(); // Force relayout!
+
     updateState();
 }