Draft: feat: bug fixes and changes in PI

• API call upon user's first token registration
  • calls mock API right now, allows for custom API call when user's first usable token is enrolled
  • problematic enrollment which prevents token use should not send out the API call
• auditing
  • add custom new logger which writes into a file
  • provides more detailed info about token enrollment/deletion/revocation/disabling/enabling
• new backup codes saving
  • backup codes are now downloaded directly as a PDF file, no new tabs in browser are opened
  • new vertical style of the codes table supports the built-in configuration features of backup codes (length, count)