[gnome-user-docs] gnome-help: Update shell exit screenshot

[Andre Klapper <aklapper src gnome org>]

commit fbf4fafafdf79627b746669de0b7461549429825
Author: Andre Klapper <a9016009 gmx de>
Date:   Tue Mar 2 21:54:12 2021 +0100

    gnome-help: Update shell exit screenshot
    
    No dropdown arrow in top bar anymore. Highlighting in top
    bar changed from blue underline to grey background.
    Background color of selected menu item is lighter.

 gnome-help/C/figures/shell-exit.png     | Bin 26484 -> 23159 bytes
 gnome-help/de/figures/shell-exit.png    | Bin 48670 -> 23817 bytes
 gnome-help/es/figures/shell-exit.png    | Bin 43963 -> 23686 bytes
 gnome-help/fr/figures/shell-exit.png    | Bin 43312 -> 23462 bytes
 gnome-help/gl/figures/shell-exit.png    | Bin 43838 -> 0 bytes
 gnome-help/hr/figures/shell-exit.png    | Bin 46256 -> 0 bytes
 gnome-help/hu/figures/shell-exit.png    | Bin 44361 -> 0 bytes
 gnome-help/pl/figures/shell-exit.png    | Bin 48632 -> 0 bytes
 gnome-help/pt_BR/figures/shell-exit.png | Bin 40063 -> 0 bytes
 gnome-help/sr/figures/shell-exit.png    | Bin 42485 -> 0 bytes
 10 files changed, 0 insertions(+), 0 deletions(-)
---
diff --git a/gnome-help/C/figures/shell-exit.png b/gnome-help/C/figures/shell-exit.png
index 2e443cc4..5c8951ae 100644
Binary files a/gnome-help/C/figures/shell-exit.png and b/gnome-help/C/figures/shell-exit.png differ
diff --git a/gnome-help/de/figures/shell-exit.png b/gnome-help/de/figures/shell-exit.png
index 144b05d4..bbb3a3f8 100644
Binary files a/gnome-help/de/figures/shell-exit.png and b/gnome-help/de/figures/shell-exit.png differ
diff --git a/gnome-help/es/figures/shell-exit.png b/gnome-help/es/figures/shell-exit.png
index 576e920b..f02dd703 100644
Binary files a/gnome-help/es/figures/shell-exit.png and b/gnome-help/es/figures/shell-exit.png differ
diff --git a/gnome-help/fr/figures/shell-exit.png b/gnome-help/fr/figures/shell-exit.png
index 7246e340..38b916b0 100644
Binary files a/gnome-help/fr/figures/shell-exit.png and b/gnome-help/fr/figures/shell-exit.png differ