Fix Build Bug

lib/pages/Works/DWDT/widget_to_image.dart

@@ -34,7 +34,7 @@ Future getIconWidget(String name) async {
                     child: IconTheme(
                   data: IconThemeData(size: 64, color: Colors.red),
                   child: Icon(
-                    new IconData(0xe60b, fontFamily: 'myfont', matchTextDirection: true),
+                    const IconData(0xe60b, fontFamily: 'myfont', matchTextDirection: true),
                   ),
                 )),
                 // TextSpan(text: "\n白塔山公园", style: TextStyle(color: Colors.black, fontSize: 36.0)),