ev-view: Make document direction independent of UI direction

Based on a patch by Tomo Kazahaya <tomonacci@gmail.com>

Fix #830
7 jobs for abderrahim/dual-rtl in 11 minutes and 23 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #234726
flatpak

00:10:50

manual #234725
allowed to fail manual
gtk-doc
passed #234722
master

00:05:42

manual #234723
allowed to fail manual
meson
manual #234724
allowed to fail manual
meson-gtk-doc
 
  Deploy
passed #234727
deploy

00:00:31

manual #234728
allowed to fail manual
stop_deploy