Replace 3box messaging threads instead of diqus

[Theylon]

replace Discuss with 3box msging threads .
https://docs.3box.io/build/web-apps/messaging

"3box could be better because its decentralized and uses the same profile as everywhere in the app"

Re already Discuss msgs ,one option will be to leave a link to Discuss so users can reach out to see old discussions.

This is the same issue as this one, but for v1
#1553

[orenyodfat]

this already been done on v2.
adding that to v1 is a bit complex and need to be discussed when and how.