Add additional context to CLI prompts

[n8maninger]

Adds additional context to the CLI prompts to alleviate confusion

Please choose a password to unlock the UI and API.
(The password must be at least 4 characters.)
Enter password: 

Type in your 12-word seed phrase and press enter. If you do not have a seed phrase yet, type 'seed' to generate one.
Enter seed phrase: 

A new seed phrase has been generated below. Write it down and keep it safe.
Your seed phrase is the only way to recover your Siacoin. If you lose your seed phrase, you will also lose your Siacoin.
You will need to re-enter this seed phrase every time you start hostd.

Seed Phrase: rigid slow unknown section exclude prosper mom lawn trend potato edit coconut
Wallet Address: addr:dfcee04ff0683f50492b0a059fd78c82d5870793470b6ef4f1d58a883ed8b9048f79977442a0

Please confirm your seed phrase to continue.
Enter seed phrase: