examples: Don't use gtk_application_add_accelerator
examples: Don't use gtk_application_add_accelerator

It has been deprecated.

Sidnioulz/SandboxGtk,jigpu/gtk,jadahl/gtk,jadahl/gtk,davidgumberg/gtk,Sidnioulz/SandboxGtk,Sidnioulz/SandboxGtk,jigpu/gtk,Lyude/gtk-,Adamovskiy/gtk,grubersjoe/adwaita,jadahl/gtk,chergert/gtk,jadahl/gtk,chergert/gtk,alexlarsson/gtk,Adamovskiy/gtk,chergert/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jessevdk/gtk,grubersjoe/adwaita,grubersjoe/adwaita,chergert/gtk,Sidnioulz/SandboxGtk,Lyude/gtk-,chergert/gtk,jessevdk/gtk,davidgumberg/gtk,Lyude/gtk-,jigpu/gtk,davidgumberg/gtk,chergert/gtk,davidgumberg/gtk,ahodesuka/gtk,ahodesuka/gtk,davidgumberg/gtk,Lyude/gtk-,jadahl/gtk,jessevdk/gtk,grubersjoe/adwaita,ahodesuka/gtk,Adamovskiy/gtk,davidgumberg/gtk,Lyude/gtk-,alexlarsson/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,ahodesuka/gtk,ahodesuka/gtk,Lyude/gtk-,Adamovskiy/gtk,jigpu/gtk,alexlarsson/gtk,Lyude/gtk-,Adamovskiy/gtk,jessevdk/gtk,davidgumberg/gtk,alexlarsson/gtk,jessevdk/gtk,chergert/gtk,Adamovskiy/gtk,grubersjoe/adwaita,jadahl/gtk,grubersjoe/adwaita,jigpu/gtk,ahodesuka/gtk,jessevdk/gtk,alexlarsson/gtk,ahodesuka/gtk,alexlarsson/gtk,Adamovskiy/gtk,jessevdk/gtk,jigpu/gtk,grubersjoe/adwaita,jadahl/gtk,davidgumberg/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,chergert/gtk,Lyude/gtk-,jigpu/gtk,jadahl/gtk,alexlarsson/gtk,jigpu/gtk