[FR] Easy way to share room and contact matrix addresses

Issue

I wanted to share a bookmarked room name or contact matrix address in a chat, like this:

Join #neochat:kde.org

However, there's no option to quickly copy the address. Instead the user needs to go to the room and either remember the exact address or note it down by hand somewhere else, before going back to the chat, where the address was supposed to be shared.

Ideas

1. The address in the "room information" pane and in the "account details" could be made select-able.
2. There could be a right click context menu with "share this room / contact with ..."
3. < Insert your better ideas > :)