Create PurpleChannelJoinDetails to replace the components for join chats
Review Request #2616 — Created Sept. 12, 2023 and submitted — Latest diff uploaded
This will be used be a new PurpleProtocolConversation vfunc in the near future which the ui can request to get information about how to join a chat for a protocol.
Ran the unit tests under valgrind and verified the docs built with no new warnings.