Fiat Buy/Sell tab is disabled in Trezor mode

[smk762]

To Reproduce

1. Login with Trezor
2. Look at sidebar

Screenshots

Expected behavior
I'm pretty sure there isnt anything at a technical level to stop users from withdrawing crypto from trezor to exchange for fiat, or using trezor addresses to receive coins from ramp/banxa.

Found in

0.9.3 RC testing via https://walletrc--pull-3185-merge-t27njkp8.web.app/wallet