text: Title: Make it possible to require whistleblowers to upload files before proceeding with the completion of the submission
  Body: **Describe the bug**
  In questionnaires if an attachment field is set as required, alarm is not given and report can be sent without the attachment.
  
  **To Reproduce**
  Steps to reproduce the behavior:
  1. On a questionnaire set an attachment field as required.
  2. When you try to file a report the upsaid required field is ignored, and if there are other errors, It's ignored in the error list also.
  3. Same if there are multiple files
  
  **Expected behavior**
  An alarm of missed attachment should be expected
  
  **Desktop (please complete the following information):**
   - OS: w10
   - Browser: firefox 94
  
  