- Fix CodeQL warnings
- Port lots of improvements/fixes from PR #225
- replace 'array_hexstr' and '%*H' format by sdk function 'format_hex'
- Add 'noreturn' attribute in 'main.c'
- Now displays a Review page before showing the fields
- Now asks for confirmation before rejecting
- Now does not refresh the screen twice after a signature approval/rejection
- Both EIP-712 implementations on par UX-wise
- Fixed v0 approve/reject status word mismatch
- Unified NBGL UI of both implementations