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

flake.nix

@@ -8,11 +8,19 @@
       (system:
         let pkgs = nixpkgs.legacyPackages.${system};
             nodejs = pkgs.nodejs_20;
-            yarn' = pkgs.yarn.override { inherit nodejs; };
         in {
           devShells.default = pkgs.mkShell {
             nativeBuildInputs = with pkgs; [
-              nodejs yarn' python3 pkg-config git rsync jq moreutils quilt bats openssl
+              nodejs
+              python3
+              pkg-config
+              git
+              rsync
+              jq
+              moreutils
+              quilt
+              bats
+              openssl
             ];
             buildInputs = with pkgs; (lib.optionals (!stdenv.isDarwin) [ libsecret libkrb5 ]
                           ++ (with xorg; [ libX11 libxkbfile ])