Migrate to package:web for Wasm compatibility

[johnpryan]

This migrates from dart:html to package:web for Wasm compatibility

[pichillilorenzo]

web package seems to be highly experimental currently.
Also, using that package would increase the minimum Dart SDK to ^3.2.0.
Probably, the best way to support it would be to create a new implementation package for web wasm instead of updating the current one.

[The-RootCause]

WASM is getting stable soon. Many packages are now compatible with Wasm.
@pichillilorenzo any plans to make it compatible with WASM ?
Thank you

[The-RootCause]

@johnpryan
Your version is still not fully wasm compatible,

../../.pub-cache/hosted/pub.dev/flutter_inappwebview_web-1.0.8/lib/web/in_app_web_view_web_element.dart:7:1: Error: JS interop library 'dart:js' can't be imported when compiling to Wasm.
Try using 'dart:js_interop' or 'dart:js_interop_unsafe' instead.
import 'dart:js' as js;
^
../../.pub-cache/hosted/pub.dev/flutter_inappwebview_web-1.0.8/lib/web/platform_util.dart:5:1: Error: JS interop library 'dart:js' can't be imported when compiling to Wasm.
Try using 'dart:js_interop' or 'dart:js_interop_unsafe' instead.
import 'dart:js' as js;
^

Anyway you can migrate the js to js_interop ?
Thank you

[p-mazhnik]

@The-RootCause I created a PR with migration to js_interop: #2067