Bulk E2E tests

[gweiying]

To be added after #2175 is completed

Bulk upload

• If bulk QR code is activated, in progress status bar should appear after uploading bulk file.
• If bulk QR code is activated, in progress status bar should change to green within 2 mins after uploading bulk file.
• Should be able to download csv, zipped png and zipped svg from success status bar
• Downloaded csv should have all created links
• Downloaded zipped QR code folders should have QR code files for all created links
• Should receive email to download zipped png and zipped svg files