[FR] Migrate to `package:web` from `dart:html` to support WASM-compilation

[dxvid-pts]

Description

dart:html is superceeded by package:web. See https://dart.dev/interop/js-interop/package-web, https://docs.flutter.dev/platform-integration/web/wasm and this talk (https://www.youtube.com/watch?v=qx42r29HhcM) for more information.

Impact

Projects targetting the web platform can benefit from using the suggested feature as they are now unblocked from compiling to WASM.

Additional Context

No response