fix(eslint): setup eslint to run on every package - N8N-4553 (#4050)

* fix(eslint): setup eslint to run on every package

Also, unify eslint config and dependencies into a private package in the workspace.

packages/workflow/.eslintrc.js

@@ -0,0 +1,9 @@
+/**
+ * @type {import('@types/eslint').ESLint.ConfigData}
+ */
+module.exports = {
+	extends: ['@n8n_io/eslint-config/base'],
+	rules: {
+		'import/order': 'off', // TODO: remove this
+	},
+};

packages/workflow/package.json

@@ -18,8 +18,8 @@
     "dev": "npm run watch",
     "build": "tsc",
     "format": "cd ../.. && node_modules/prettier/bin-prettier.js packages/workflow/**/**.ts --write",
-    "lint": "cd ../.. && node_modules/eslint/bin/eslint.js packages/workflow",
-    "lintfix": "cd ../.. && node_modules/eslint/bin/eslint.js packages/workflow --fix",
+    "lint": "eslint .",
+    "lintfix": "eslint . --fix",
     "watch": "tsc --watch",
     "test": "jest",
     "test:dev": "jest --watch"
@@ -28,6 +28,7 @@
     "dist"
   ],
   "devDependencies": {
+    "@n8n_io/eslint-config": "",
     "@types/express": "^4.17.6",
     "@types/jest": "^27.4.0",
     "@types/jmespath": "^0.15.0",
@@ -37,13 +38,6 @@
     "@types/luxon": "^2.0.9",
     "@types/node": "^16.11.22",
     "@types/xml2js": "^0.4.3",
-    "@typescript-eslint/eslint-plugin": "^5.0.0",
-    "@typescript-eslint/parser": "^5.0.0",
-    "eslint": "^8.0.0",
-    "eslint-config-airbnb-typescript": "^12.3.1",
-    "eslint-config-prettier": "^8.3.0",
-    "eslint-plugin-import": "^2.23.4",
-    "eslint-plugin-prettier": "^3.4.0",
     "jest": "^27.4.7",
     "jest-environment-jsdom": "^27.5.1",
     "prettier": "^2.3.2",