Drop evince in favour of a native PDF app

[hanaral]

I know that it 'technically works' but it has at best had visual inconsistencies + bugs and is an overall pretty poor experience in my own experience. Aesop by Lains worked pretty well for me before, and it might serve well as a base to make a builtin first-party app that actually looks like and follows elementary guidelines.

[hanaral]

I wasn't trying to imply that this needs to be a target for 6, but whenever someone is interested it might be good to post relevant stuff here for them to use.
Here are some of the visual ickynesses of Evince:

.	screenshot
example 1
example 2
example 2

[cassidyjames]

Please file these as issues against the stylesheet. It's not strictly Evince's fault that we don't yet support widgets used in these ways.

[edmundlaugasson]

Would propose Atril as default PDF-reader. This is also using GTK library. Atril has simple UI but yet many advanced features. Also there is possible to configure UI so, that more buttons are visible.

[danirabbit]

I think it’s likely we’ll switch to Papers with a patch to use Granite’s stylesheet like we do with other GNOME apps we ship. It’s a much more modern design that solves a lot of the ickier UI/UX issues that were present in Evince