feat(29): adjust certificate filename
This MR solves this Trello Issue
-> The helper method 'pdf_file_name' was populating 'certificate.pdf.pdf' and instead of refactoring I just applied the filename itself directly in the certificates controller.
This MR solves this Trello Issue
-> The helper method 'pdf_file_name' was populating 'certificate.pdf.pdf' and instead of refactoring I just applied the filename itself directly in the certificates controller.