Fix second vue demo

Author: simolus3

demos/nuxt-supabase-todolist/package.json

@@ -11,7 +11,7 @@
     "@nuxtjs/supabase": "2.0.1",
     "@powersync/kysely-driver": "^2.0.0",
     "@powersync/nuxt": "^0.0.8",
-    "@powersync/vue": "^1.0.0",
+    "@powersync/vue": "^0.6.0",
     "@powersync/web": "^2.0.0",
     "@supabase/supabase-js": "2.75.0",
     "tailwindcss": "^4.1.18"