Further simplify automated Ghost Node setup

[dacx]

This is a suggestion for an enhancement on the automated node setup.

Description

Currently, the setup screen looks like this:

Suggestion

Further simplify this by

1. automatically generating a ghost node key
2. automatically displaying available ghostnode outputs and allowing the user to select the appropriate one (if there are multiple multiple)

This would reduce the screen to

1. VPS IP
2. root password
3. desired alias
4. selection of desired output to use (if more than one is available)

and thus making the wallet even more user friendly.

[mattt21]

Good idea, will see to get that integrated in the next update.