Seperate npm commands for linting js and scss

This allows these commands to be executed seperately, needed if we want
to run these task as seperate job in GitHub Actions.

Author: theseanything

package.json

@@ -15,7 +15,9 @@
   "scripts": {
     "test": "vitest run",
     "test:watch": "vitest watch",
-    "lint": "standard | snazzy && stylelint 'app/**/*.scss'",
+    "lint": "npm run lint:javascript && npm run lint:scss",
+    "lint:scss": "stylelint 'app/**/*.scss'",
+    "lint:javascript": "standard | snazzy",
     "format": "standard --fix && stylelint 'app/**/*.scss' --fix",
     "ci": "bin/setup && bin/rails server",
     "dev": "vite dev"