chore(deps): update dependency vite to v8

Author: renovate[bot]

package.json

@@ -61,7 +61,7 @@
     "svelte-intersection-observer-action": "^0.0.5",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",
-    "vite": "^6.4.1",
+    "vite": "^8.0.0",
     "vitest": "^3.2.4",
     "yaml": "^2.8.3"
   },