feat: add tauri-plugin-dialog for file picker

package.json

@@ -14,6 +14,7 @@
   "license": "MIT",
   "dependencies": {
     "@tauri-apps/api": "^2",
+    "@tauri-apps/plugin-dialog": "^2.5.0",
     "@tauri-apps/plugin-opener": "^2",
     "lucide-svelte": "^0.562.0",
     "svelte-i18n": "^4.0.0"