eog-application.c: Add new shortcut for zoom-normal action

It's very common to use Ctrl+KP_0 shortcut for zoom normal action.
This patch adds Ctrl+KP_0 shortcut for it.
1 job for zoom-normal in 21 minutes and 35 seconds
Status Job ID Name Coverage
  Test
passed #668725
flatpak
flatpak

00:21:35