refactor: update prettier and doctoc (#5605)

* docs: add toc to CODE OF CONDUCT

* chore: add prettier ignore blocks to docs

* chore: update styles for Dockerfile

* refactor: separate prettier, doctoc

This does a couple things:
- update `.prettierignore`
- split `prettier` and `doctoc` commands. you can still run with `yarn
  fmt`
- delete `fmt.sh` and add `doctoc.sh`

By doing so, we can run tasks in parallel in CI and we should also have
less false positives than before with `yarn fmt` locally.

* refactor: update prettier job, add doctoc

This modifies the prettier job to use actionsx/prettier. It also adds a
job for `doctoc`.

* chore: upgrade to prettier 2.7.1

* chore: pin doctoc to 2.0.0

* fixup!: add .pc to prettierignore

* feat: add --cache to prettier cmd

package.json

@@ -12,6 +12,7 @@
     "clean": "./ci/build/clean.sh",
     "build": "./ci/build/build-code-server.sh",
     "build:vscode": "./ci/build/build-vscode.sh",
+    "doctoc": "./ci/dev/doctoc.sh",
     "release": "./ci/build/build-release.sh",
     "release:standalone": "./ci/build/build-standalone-release.sh",
     "release:prep": "./ci/build/release-prep.sh",
@@ -22,11 +23,12 @@
     "test:native": "./ci/dev/test-native.sh",
     "test:scripts": "./ci/dev/test-scripts.sh",
     "package": "./ci/build/build-packages.sh",
+    "prettier": "prettier --write --loglevel=warn --cache .",
     "postinstall": "./ci/dev/postinstall.sh",
     "publish:npm": "./ci/steps/publish-npm.sh",
     "publish:docker": "./ci/steps/docker-buildx-push.sh",
     "_audit": "./ci/dev/audit.sh",
-    "fmt": "./ci/dev/fmt.sh",
+    "fmt": "yarn prettier && ./ci/dev/doctoc.sh",
     "lint:scripts": "./ci/dev/lint-scripts.sh",
     "lint:ts": "eslint --max-warnings=0 --fix $(git ls-files '*.ts' '*.js' | grep -v 'lib/vscode')",
     "test": "echo 'Run yarn test:unit or yarn test:e2e' && exit 1",
@@ -53,13 +55,13 @@
     "@typescript-eslint/eslint-plugin": "^5.23.0",
     "@typescript-eslint/parser": "^5.23.0",
     "audit-ci": "^6.0.0",
-    "doctoc": "^2.0.0",
+    "doctoc": "2.0.0",
     "eslint": "^7.7.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-import-resolver-typescript": "^2.5.0",
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-prettier": "^4.0.0",
-    "prettier": "^2.2.1",
+    "prettier": "2.7.1",
     "prettier-plugin-sh": "^0.12.0",
     "ts-node": "^10.0.0",
     "typescript": "^4.6.2"