folder restructuring

lib/utils/url_opener.dart

@@ -0,0 +1,10 @@
+import 'package:flutter_linkify/flutter_linkify.dart';
+import 'package:url_launcher/url_launcher_string.dart';
+
+class UrlOpener {
+  static Future<void> onOpen(LinkableElement link) async {
+    if(await canLaunchUrlString(link.url)) {
+      await launchUrlString(link.url);
+    }
+  }
+}