Handling of conversation shares

[nickvergessen]

In Nextcloud 14 there was a new share type introduced: 10
https://github.com/nextcloud/server/blob/857bb4536628814cdae3591c795bb1e21e9704b7/lib/private/Share/Constants.php#L42

It would be nice if the shares are flagged as displayname (conversation) when listing all the shares, and when you also would allow to create such shares in the client. You can test this easily, by going to an instance with talk installed, create a conversation "Test room", go to the files app, open the share sidebar and try to share with "Test room". There should be a suggestion Test room (conversation)