feat: switch to npm as default package manager (#226927)

* feat: move from yarn to npm

* chore: skip yarn.lock files

* fix: playwright download

* chore: fix compile and hygiene

* chore: bump [email protected]

Refs https://github.com/microsoft/vscode-vsce/commit/8b49e9dfdf909ad3af2b9ec9c825f5b501f6d75e

* test: update results for bat and sh colorizer tests

* fix: add missing lock files for windows

* fix: switch to legacy-peer-deps

* chore: update [email protected]

Refs https://github.com/markdown-it/markdown-it/commit/737c95a12976357df99652e4b51d831cac4a75aa

esbuild step in extensions-ci-pr was previously using markdown-it
from root which had userland punycode and was able to compile successfully.

* ci: increase pr timeout for windows integration tests

* chore: fix product build

* build: ignore extension dev dependency for rcedit

* build: fix working directory inside container

* build: fix dependency generation

* npm: update dependencies

* ci: use global npmrc

* ci: update cache

* ci: setup global npmrc for private npm auth

* build: fix extension bundling

* chore: sync npm dependencies

* ci: debug env variables for container

* ci: fix win32 cli pipeline

* build: fix npmrc config usage for build/ and remote/ dirs

* fix: windows build

* fix: container builds

* fix: markdown-language-features tests and bundling

```
[03:58:22] Error: Command failed: /Users/demohan/.nvm/versions/node/v20.15.1/bin/node /Users/demohan/github/vscode/extensions/markdown-language-features/esbuild-notebook.js --outputRoot /Users/demohan/github/vscode/.build/extensions/markdown-language-features
✘ [ERROR] Could not resolve "punycode"

    extensions/markdown-language-features/node_modules/markdown-it/lib/index.js:14:27:
      14 │ var punycode     = require('punycode');
         ╵                            ~~~~~~~~~~

  The package "punycode" wasn't found on the file system but is built into node. Are you trying to bundle for node? You can use "platform: 'node'" to do that, which will remove this error.
```

Adds userland package based on https://github.com/markdown-it/markdown-it/commit/beed9aee2c1b44819afc25d485e86a6c699b6ef0

* fix: container builds for distro

* chore: update yarn occurrences

* fixup! chore: bump [email protected]

Uses the closest version to `main` branch that does not
include https://github.com/microsoft/vscode-vsce/commit/d3cc84cdec99b8e9f24be63d1a2a54abe908f68b
while still having the fix https://github.com/microsoft/vscode-vsce/commit/8b49e9dfdf909ad3af2b9ec9c825f5b501f6d75e

* chore: sync npm dependencies

* chore: sync npm dependencies

* chore: sync npm dependencies

* chore: throw error when yarn is used for installation

* chore: add review feedback

* chore: switch exec => run where needed

* chore: npm sync dependencies

* fix: markdown-language-features bundling

```
✘ [ERROR] Could not resolve "punycode"

    extensions/markdown-language-features/node_modules/markdown-it/lib/index.js:14:27:
      14 │ var punycode     = require('punycode');
         ╵                            ~~~~~~~~~~

  The package "punycode" wasn't found on the file system but is built into node. Are you trying to bundle for node? You can use "platform: 'node'" to do that, which will remove this error.
```

Adds missing userland package based on markdown-it/markdown-it@beed9ae,
can be removed once we update markdown-it >= 14.1.0

* ci: rename no-yarn-lock-changes.yml

* chore: sync npm dependencies

* ci: restore no-yarn-lock-changes.yml

We can disable it in a separate PR to keep the required
checks happy and also need workflow edit perms.

* chore: sync npm dependencies

* ci: rebuild cache

* ci: fix no-package-lock-changes.yml

* chore: bump distro

* chore: rm yarn.lock files

* chore: rm yarn.lock files without dependencies

* chore: add vscode-selfhost-import-aid to postinstall dirs

* chore: bump distro