ui: Add DescriptionDisplay

This will be used later to display game stats.
6 jobs for descriptionview in 9 minutes and 32 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
failed #167330
flatpak:app

00:09:32

 
  Test
skipped #167331
flatpak:tests
 
  Review
skipped #167332
review
skipped #167333
allowed to fail manual
stop_review
 
  Cross Distro
skipped #167334
fedora:29
skipped #167335
ubuntu:devel
 
Name Stage Failure
failed
flatpak:app Build
../src/ui/application-window.vala:59.2-59.19: error: Property `Games.ApplicationWindow.toggle' with custom `get' accessor and/or `set' mutator cannot have `default' value
public bool toggle {
^^^^^^^^^^^^^^^^^^
Compilation failed: 6 error(s), 0 warning(s)
[7/279] Generating playstation.gameinfo with a meson_exe.py custom command.
[8/279] Generating org.gnome.GamesDevel.appdata.xml_data_merge with a custom command.
[9/279] Generating org.gnome.GamesDevel.desktop_data_merge with a custom command.
ninja: build stopped: subcommand failed.
ERROR: Job failed: exit code 1