Add linter config

.eslintignore

@@ -1,2 +1,3 @@
 dist
-node_modules
+node_modules
+.eslintrc.js

.eslintrc.json

@@ -1,3 +0,0 @@
-{
-    "extends": "@jitsi/eslint-config"
-}

package.json

@@ -13,19 +13,13 @@
         "npm": ">=7.0.0"
     },
     "dependencies": {
-        "@jitsi/eslint-config": "^4.1.0",
         "@types/debug": "4.1.5",
         "@types/express": "4.17.11",
         "@types/node": "14.14.31",
         "@types/socket.io": "2.1.4",
-        "@typescript-eslint/eslint-plugin": "5.30.5",
-        "@typescript-eslint/parser": "5.30.4",
         "cross-env": "^7.0.3",
         "debug": "4.3.1",
         "dotenv": "^10.0.0",
-        "eslint": "8.1.0",
-        "eslint-plugin-import": "2.25.2",
-        "eslint-plugin-jsdoc": "37.0.3",
         "express": "4.17.1",
         "socket.io": "^2.5.0",
         "socket.io-prometheus-metrics": "^1.0.6",
@@ -35,7 +29,18 @@
     "license": "MIT",
     "scripts": {
         "build": "tsc",
+        "lint": "eslint .",
+        "lint-fix": "eslint . --fix",
         "start": "tsc && node dist/index.js",
         "start:dev": "cross-env NODE_ENV=development ts-node-dev --respawn --transpile-only src/index.ts"
+    },
+    "devDependencies": {
+        "@jitsi/eslint-config": "^4.1.0",
+        "@typescript-eslint/eslint-plugin": "5.30.5",
+        "@typescript-eslint/parser": "5.30.4",
+        "eslint": "8.1.0",
+        "eslint-plugin-import": "2.25.2",
+        "eslint-plugin-jsdoc": "37.0.3",
+        "eslint-plugin-typescript-sort-keys": "^2.1.0"
     }
 }

src/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    extends: [
+        '@jitsi/eslint-config',
+        '@jitsi/eslint-config/jsdoc',
+        '@jitsi/eslint-config/typescript',
+    ],
+};