Unfiltered EIP-712 fallback to raw message for NBGL devices + skip button

[apaillier-ledger]

Description

Changes default behavior for unfiltered EIP-712 reviews for Flex & Stax, adds a skip button.

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[cedelavergne-ledger]

Minor, but usually simpler to write:

#ifndef SCREEN_SIZE_WALLET
        if (N_storage.verbose_eip712 || (path_get_root_type() == ROOT_DOMAIN)) {
#endif
        {
                ...
        }