Add Signer
- I want to learn more about Keystone hardware wallet
- I want to learn more about SeedSigner
- I want to learn more about Blockstream Jade
- I want to learn more about Trezor
- I want to learn more about Ledger
- I want to learn more about the COLDCARD
- I want to learn more about the TAPSIGNER
- I want to learn more about adding a signer (signing devices) to Keeper