Support WASM Build

[nomad2569]

To use the WASM build supported from Flutter 3.22 onwards, the following migration is necessary:

https://docs.flutter.dev/platform-integration/web/wasm#js-interop-wasm

However, since iamport_flutter depends on uni_links, which has not been updated for two years, running

flutter build web --wasm

leads to the following error.

.pub-cache/hosted/pub.dev/uni_links_web-0.1.0/lib/uni_links_web.dart:1:8: Error: Dart library 'dart:html' is not available on this platform.
import 'dart:html';

I suggest replacing uni_links with app_links.

Thank you.