feat: enhance backup and download functionalities

- Updated `BackupCenterPage` to support download progress tracking during remote backup downloads.
- Modified `ImportPage` to simplify export functionality by removing unnecessary payload handling.
- Improved `JwtWarningPage` to utilize a new clipboard utility for copying text with feedback.
- Enhanced `PublicSendPage` to show download progress for files being downloaded.
- Updated `RecoverTwoFactorPage` to include autocomplete attributes for better user experience.
- Refactored `SendsPage` to use the new clipboard utility for copying access URLs.
- Enhanced `SettingsPage` to utilize the clipboard utility for copying sensitive information.
- Improved `TotpCodesPage` to use the clipboard utility for copying TOTP codes.
- Updated `VaultPage` and related components to support download progress for attachments.
- Introduced a new `app-notify` module for consistent notification handling across the application.
- Created a `clipboard` utility for improved clipboard interactions with user feedback.
- Added progress tracking for file downloads in the API layer, enhancing user experience during downloads.

src/router-authenticated.ts

@@ -37,6 +37,7 @@ import {
   handleGetSends,
   handleGetSend,
   handleCreateSend,
+  handleCreateFileSendV2,
   handleGetSendFileUpload,
   handleUploadSendFile,
   handleUpdateSend,
@@ -217,6 +218,10 @@ export async function handleAuthenticatedRoute(
     return null;
   }
 
+  if (path === '/api/sends/file/v2' && method === 'POST') {
+    return handleCreateFileSendV2(request, env, userId);
+  }
+
   if (path === '/api/sends/delete' && method === 'POST') {
     return handleBulkDeleteSends(request, env, userId);
   }