There is already such bubble available, but there is a bug when Persons and Orgs are used together which will be fixed in the future, for now you can use workaround:
There are two Friends items in Studio > Navigation > Items > Module: System > Menu: Notifications
Just put Friends from Persons module as the last one - blue icon.
There is already such bubble available, but there is a bug when Persons and Orgs are used together which will be fixed in the future, for now you can use workaround:
There are two Friends items in Studio > Navigation > Items > Module: System > Menu: Notifications
Just put Friends from Persons module as the last one - blue icon.