security: update svelte to 5.46.4

Fixes CVE for Cross-site Scripting vulnerability (MEDIUM)

package.json

@@ -30,7 +30,7 @@
     "@tauri-apps/cli": "^2",
     "@testing-library/svelte": "^5.3.1",
     "jsdom": "^27.4.0",
-    "svelte": "^5.0.0",
+    "svelte": "^5.46.4",
     "svelte-check": "^4.0.0",
     "typescript": "~5.6.2",
     "vite": "^6.0.3",