consolidated downloads dir, nextcloud origin, upload route and chat timestamps; added webdav path tests

lib/view/pages/share_intent/share_folder_picker.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:persistent_bottom_nav_bar_v2/persistent_bottom_nav_bar_v2.dart';
 
 import '../../../api/errors/error_mapper.dart';
 import '../../../routing/app_routes.dart';
@@ -17,7 +16,6 @@ import '../../../widget/centered_leading.dart';
 import '../../../widget/info_dialog.dart';
 import '../../../widget/placeholder_view.dart';
 import '../files/data/file_sort.dart';
-import '../files/files_upload_dialog.dart';
 import '../files/widgets/add_file_menu.dart';
 import '../files/widgets/file_leading.dart';
 import '../files/widgets/files_sort_actions.dart';
@@ -173,15 +171,12 @@ Future<void> _externalUploadFlow(
 ) async {
   ShareIntentListener.instance.beginFlow();
   try {
-    await pushScreen(
+    await AppRoutes.openFilesUpload(
       context,
-      withNavBar: false,
-      screen: FilesUploadDialog(
-        filePaths: share.filePaths,
-        remotePath: targetPath.join('/'),
-        onUploadFinished: (_) =>
-            _afterExternalUploaded(context, targetPath, share),
-      ),
+      filePaths: share.filePaths,
+      remotePath: targetPath.join('/'),
+      onUploadFinished: (_) =>
+          _afterExternalUploaded(context, targetPath, share),
     );
   } finally {
     ShareIntentListener.instance.endFlow();