relocate onto new domain name and npm package

[chase-moskal]

current/old situation:

• npm package: sparrow-rtc
• demo domain: sparrow.benev.gg
• signaller server: signaller.sparrow.benev.gg

proposed new situation:

• npm package: @benev/sparrow
• demo domain: sparrow.benevolent.games
• signaller server: signaller.sparrow.benevolent.games

[chase-moskal]

the funny thing is that we're actually going to switch back to benev.gg hahahah