Add a Solana hardware wallet using Trezor

### What is this about?

Having problems adding a Solana wallet into MetaMask using Trezor following these steps:

1. MetaMask -> Accounts
2. Add Wallet
3. Add a hardware wallet
4. Selecting "Trezor" and clicking Continue

and the list of accounts that I can choose from only contain Etherem wallets but not Solana (or any other) ones.
Googleing around tells me to switch network in MetaMask but wasn't able to do so, tried to force MetaMask to delete all networks except the one I would like to test with but Ethereum and Bitcon cannot be deleted and so it will always only show me the eth wallets from the hardware wallet.

Is there something I'm missing here or this is something that has not yet been implemented and it is on the todo list. Searched the issues on here too but can't find anything related to this.

Thank you guys in advance!

### Scenario

_No response_

### Design

_No response_

### Technical Details

_No response_

### Threat Modeling Framework

_No response_

### Acceptance Criteria

_No response_

### Stakeholder review needed before the work gets merged

- [ ] Engineering (needed in most cases)
- [ ] Design
- [ ] Product
- [ ] QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
- [ ] Security
- [ ] Legal
- [ ] Marketing
- [ ] Management (please specify)
- [ ] Other (please specify)

### References

_No response_

The issue names no files, tests, or entry points. First confirm whether Solana support through Trezor is in scope and identify the existing hardware-wallet account flow; the work is complete only after maintainers define acceptance criteria for supported networks and account selection.

Written by the indexing model from the issue text.