UX Improvements about btcpayserver-configurator

[Kukks]

Started looking into it but:
put alts in advanced/geeky can't be done: I need both choices in the same page as a user needs to have at least one chain chosen to be deployed. Else, the UX suffers from multi-page validation.

[Kukks]

Tried to Merge steps 3 and 4 (On and off-chain) but it just looked messy as the page got longer

[pavlenex]

Well I still think 3 and 4 should be merged, perhaps reducing the size of that logo which seems unnecessary large may help?

[britttttk]

Awesome feature :)

• I had a hard time seeing the first page was 2 buttons (dumb I know). So I was pressing continue without selecting one, it says ssh error but there was nothing shown about ssh on the page yet.
• Last page gif also does not look like a button and is scary.
• Sometimes the back button cant go back

Other than that, I thought everything looked really good!

Other thoughts:

Merge steps 3 and 4 (On and off-chain)

nack - simple page is better and less intimidating. Also LN page looks really pretty to me.

put alts in advanced/geeky

I prefer the choice to not use altcoins happens right away... and to keep advanced/geeky free of alts.