Update Code to 1.94.2 (#7026)

* Update Code to 1.94.2

* Convert from yarn to npm

This is to match VS Code.  We were already partially using npm for the
releases so this is some nice alignment.

* Update caniuse-lite

This was complaining on every unit test.

* Update eslint

I was having a bunch of dependency conflicts and eslint seemed to be the
culprit so I just removed it and set it up again, since it seems things
have changed quite a bit.

* Update test dependencies

I was getting oom when running the unit tests...updating seems to work.

* Remove package.json `scripts` property in release

The new pre-install script was being included, which is dev-only.

This was always the intent; did not realize jq's merge was recursive.

* Remove jest and devDependencies in release as well

* Update test extension dependencies

This appears to be conflicting with the root dependencies.

* Fix playwright exec

npm does not let you run binaries like yarn does, as far as I know.

* Fix import of server-main.js

* Fix several tests by waiting for selectors

ci/build/npm-postinstall.sh

@@ -117,14 +117,11 @@ main() {
 
 install_with_yarn_or_npm() {
   echo "User agent: ${npm_config_user_agent-none}"
-  # NOTE@edvincent: We want to keep using the package manager that the end-user was using to install the package.
-  # This also ensures that when *we* run `yarn` in the development process, the yarn.lock file is used.
+  # For development we enforce npm, but for installing the package as an
+  # end-user we want to keep using whatever package manager is in use.
   case "${npm_config_user_agent-}" in
     npm*)
-      # HACK: NPM's use of semver doesn't like resolving some peerDependencies that vscode (upstream) brings in the form of pre-releases.
-      # The legacy behavior doesn't complain about pre-releases being used, falling back to that for now.
-      # See https://github.com//pull/5071
-      if ! npm install --unsafe-perm --legacy-peer-deps --omit=dev; then
+      if ! npm install --unsafe-perm --omit=dev; then
         return 1
       fi
       ;;