feat: Theme studio v2

package.json

@@ -65,8 +65,10 @@
     "@angular/platform-browser": "^21.0.0",
     "@angular/router": "^21.0.0",
     "@codemirror/commands": "^6.10.3",
+    "@codemirror/lang-css": "^6.3.1",
     "@codemirror/lang-json": "^6.0.2",
     "@codemirror/language": "^6.12.3",
+    "@codemirror/lint": "^6.9.5",
     "@codemirror/state": "^6.6.0",
     "@codemirror/theme-one-dark": "^6.1.3",
     "@codemirror/view": "^6.41.0",