Hide status bar by default and move navigation controls into toolbar

BUG: 413689
FIXED-IN: 1.9.0
2 jobs for !61 with tweak-default-layout in 15 minutes and 18 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Build
passed #20960
build_ubuntu_18_04

00:09:40

passed #20959
linux kf5-qt5 qt5.12

00:15:18

42.0%