fix: add support for upcoming makeDelegate blockstack update

[janniks]

ready for review, but will still npm install blockstack 18.1.6 once released

• adds ui and logic for transactions.makeDelegate

• branch fix/add-v18.1.6-blockstack-testnet includes the changes to test this on testnet with the software-signer

• not much changed for the UI, but I added a wrapper container for the specific fields for stacking & delegate

• delegate re-used the amount field (like other methods), but has it's own further parameters

• some fields are now annotated with optional and required -- here it might be dangerous to delegate without a until-ht, since there is no revoke via btc, so we could technically require all fields for users safety 🤷‍♂

Note I duplicated and adapted from the existing Stacking functionality.

CC @donpdonp

[janniks]

Did a mainnet test as well: https://explorer.stacks.co/txid/0x007e82be799eb0d988fe740f30d7d1774a615b8c4ba7130ff7aa4798d2d95e30?chain=mainnet And here's the delegation status via API read call:

[kantai]

Great -- mainnet test worked:

https://explorer.stacks.co/txid/0x80afc12e284c65ca0a9a58ddd58f6852d4dae9d195fef9379bf4b00a917285c3?chain=mainnet

!