dartdev `create web` templates for Dart 3.0 support

[nshahan]

The integration test for creating a new Dart Web project is failing and currently skipped because it takes too long to timeout on the failure. #51037

I believe these are the steps remaining to get it working:

• Publish build_web_compilers compatible with Dart 3.0.0-134.0.dev (already done v4.0.0).
• Publish dwds compatible with Dart 3.0.0-134.0.dev.
• Publish webdev compatible with dwds and build_web_compilers that are compatible with Dart 3.0.0-134.0.dev.
• Update dartdev web template to depend on build_web_compilers: 4.0.0.

[nshahan]

@annagrin I believe the list above should cover everything we need to fix the dart create web command.

[annagrin]

@mit-mit @nshahan we need to publish a new version of webdev that works with current SDK. Here are the steps we normally follow to make sure the published package is properly tested:

• roll dwds master internally, wait for a week to fix any issues encountered by the users
• publish dwds
• publish webdev

I tested the dart create web command with my local webdev installation and it works, so as soon as we publish webdev it should just start working.

Does this schedule sound acceptable for the fix?

[nshahan]

The test is passing on linux and mac but failing on windows. Unfortunately the test output log is not very helpful. https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket/8790341062187901153/+/u/test_results/new_test_failures__logs_

Since the updates in the build and webdev packages were related to filenames and paths my only guess is that one of them isn't correct for windows. Still investigating.