DIALOG_TEMPLATE_SELECTOR: Force display refresh after selecting a path

For some reason the panel showing the templates did not show the new selection
Fixes #10106
From Master branch

kicad/dialogs/dialog_template_selector.cpp

@@ -297,6 +297,7 @@ void DIALOG_TEMPLATE_SELECTOR::replaceCurrentPage()
     buildPageContent( m_tcTemplatePath->GetValue(), page );
 
     m_selectedWidget = nullptr;
+    PostSizeEvent();    // A easy way to froce refresh displays
 }