Downgrade Svelte to fix store error

Probably due to sveltejs/svelte#14195

Author: kyoshino

package.json

@@ -45,7 +45,7 @@
     "stylelint": "^16.10.0",
     "stylelint-config-recommended-scss": "^14.1.0",
     "stylelint-scss": "^6.8.1",
-    "svelte": "5.1.13",
+    "svelte": "5.1.12",
     "svelte-check": "^4.0.6",
     "svelte-i18n": "^4.0.1",
     "svelte-preprocess": "^6.0.3",