Minor text copy changes

[avive]

• Always display 0x prefix when displaying hex numbers. e.g. anton pubkey

• Commands help copy:

• Create account -> Create a new coin account.

• account -> Display account info.

• transfer coins -> Transfer coins between any two accounts.

• switch account -> Switch to another account.

• commitment finished for node: cfcf9 size: 1024 (bytes) -> 'Co.... [disk-emoji][clock-emoji]`

• Anywhere that a coin balance is displayed - add the unit SMC after it. e.g 500 SMC

Transfer coins flow

• choose one: -> choose an account to receive the coins.
• Enter Meshcoins amount to transfer: -> Enter Spacemesh Coins (SMC) amount to transfer:
• mining reward -> award
• non default -> non-default

[avive]

All implemented. Just need to test.