update(RFC54): topic name usage

[jimstir]

Reference Issue: vacp2p/rfc#594
Author: kaiserd

background

previous discussion

motivation

With Waku v2, we do not have a topic name limitation and should move to 1:1 chat contentTopic names in line with 23/WAKU2-TOPICS.

For instance

/status/<version>/1to1/<keccak256(partitionTopic)>

cc @rymnc @felicio