Added initState() to downloader_menu.dart to fetch prefWorkingDirectory

lib/src/widgets/home_page/downloader_menu.dart

@@ -13,6 +13,18 @@ class DownloaderMenu extends StatefulWidget {
 }
 
 class _DownloaderMenuState extends State<DownloaderMenu> with PreferencesMixin {
+  @override
+  void initState() {
+    super.initState();
+    getPreference(prefWorkingDirectory).then((pref) {
+      if (pref is String) {
+        setState(() {
+          Directory.current = pref;
+        });
+      }
+    });
+  }
+  
   @override
   Widget build(BuildContext context) {
     return Expanded(