Prior to this commit, the function was expected on a `chatView` QML object.
This has worked out so far because the places where the API is used were always
living inside `ChatLayout`.
With the new timeline however, this is no longer the case so we have to make sure
that the API is available to other views as well.
These components are used to render the chat info in the top bar of the chat view.
`StatusChatInfoButton` is an clickable button that will open chat info dialogs.
Closes#923
Jonathan Rainville
Pascal Precht
Richard Ramos