Allow us to rename the chats (important for the Favorites menu)

If you put a direct chat into the favorites, it appears there with the name of the Space.
A tiny icon left from the name indicates that this entry is a chat. That's nice,
But that the entry has the name of the Space is not good.

At the moment, I have only one partner for direct chat.
But I can already imagine what will happen if I would have a second direct chat with another person and I would add this chat also to the Favorites.
--> There would then be two chat entries in the Favorites that both have the same name: the name of the Space.

Therefore: Allow us to rename the chats.