use granite status overlay instead of "basic info" pane

[Danielle Foré]

Instead of having the "Basic info" sidebar section we should use granite's status overlay to give context info just like Files.

[Corentin Noël (tintou)]

I'd like to know more about this, which informations should remain, which shouldn't ?

[Danielle Foré (danrabbit)]

Probably just the stuff we show in Files. So I think it's just resolution, file size, and type. For more metadata, Meese is working on a context pane that should be easy to get to.