Cardano token definitions fix

[tomasklim]

Description

• revert using policy id as contract address as it is not really needed and it was breaking send form because policy id is not unique (aha) and this solution is better (no changes to critical methods)
• fixes coins without token definitions have all tokens "legit" by default
• fiats are now fetched first for policy id, then for unit
  • coingecko mixes them together (token definitions are modified so that they use only policy ids)
• policy id is now used for token definitions (policy id is part of unit which is contract address so it works!)
• show also unit to a user

Related Issue

Resolve #13169

Screenshots:

if you compare it with #13093 we also have fiat for banker coin! because that one uses unit and not policy id on coingecko 🙃

(token-definitions turned on just for this screenshot)

[tomasklim]

@trezor/qa

• check that cardano tokens can be send (also the ones with same policy id)
• check migration again please and that it works after the migration
• check that fiat rates and historic rates work for coins using and not blockbook
• coins without token definitions (e.g. testnet ada should have tokens by default legit)

[bosomt]

work in progress

Upgrade from
2.6.0 8ca0111 to
24.8.0 13658c4

• send TADA
  
• explorer link ok
• send TADA token
• explorer link ok
• hide token ok
• show token ok
• view token in explorer ok
• fingerprint copy ok
• policy id ok

[tomasklim]

/rebase

[github-actions]

Start rebasing: https://github.com/trezor/trezor-suite/actions/runs/9795998811

[tomasklim]

do not merge yet please