- Update dwds and and the rest of the packages

Closes: https://github.com/flutter/flutter/issues/87100

* Upgrade all packages

In particular, bring in dwds with latest fixes for flakes.

Closes: https://github.com/flutter/flutter/issues/85043
Related: https://github.com/flutter/flutter/issues/85575

* Re-enable fixed tests

* Disable failing test due to DDS issue

* [web] move e2e tests from flutter/engine to flutter/flutter
* flutter update-packages --force-upgrade

Includes updates to test expectations due to changes in the widget kernel
transformer.

shelf 1.1.2 -> 1.1.4
flutter_template_images 1.0.2 -> 3.0.0

* Add 'v' hotkey to open DevTools in the browser

This reverts commit 35ad43f2.

This reverts commit c26ed03c.

* Migrate to ChannelBuffers.push

* Move TestDefaultBinaryMessenger to its own file

* Apply deprecations and fix usages