Add ESLint to winamp-eqf and include in CI

- Add lint script to winamp-eqf package.json
- Add winamp-eqf#lint task to turbo.json so it runs in CI

Author: captbaritone

packages/winamp-eqf/package.json

@@ -23,6 +23,7 @@
   "scripts": {
     "build": "tsc",
     "prepublishOnly": "npm run build",
+    "lint": "eslint src --ext ts,js",
     "test": "jest",
     "type-check": "tsc --noEmit"
   },

turbo.json

@@ -66,6 +66,7 @@
     },
     "skin-database#lint": {},
     "webamp-modern#lint": {},
+    "winamp-eqf#lint": {},
     "dev": {
       "cache": false,
       "persistent": true