[nautilus] help-overlay: Add arrow keys to Keyboard Shortcuts

[António Fernandes <antoniof src gnome org>]

commit 99d452bc89293a65e5592f836c58418538be7141
Author: Tero Gusto <regit mailbox org>
Date:   Sat Feb 12 15:51:58 2022 +0000

    help-overlay: Add arrow keys to Keyboard Shortcuts
    
    Adds description for Left & Right arrow keys to Keyboard Shortcuts documentation.
    
    Fixes https://gitlab.gnome.org/GNOME/nautilus/-/issues/2081

 src/resources/gtk/help-overlay.ui | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/src/resources/gtk/help-overlay.ui b/src/resources/gtk/help-overlay.ui
index 5f4c689c1..3cc4f10f1 100644
--- a/src/resources/gtk/help-overlay.ui
+++ b/src/resources/gtk/help-overlay.ui
@@ -310,6 +310,20 @@
             </child>
           </object>
         </child>
+        <child>
+          <object class="GtkShortcutsShortcut">
+            <property name="visible">True</property>
+            <property name="title" translatable="yes" context="shortcut window">Expand folder</property>
+            <property name="accelerator">Right</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkShortcutsShortcut">
+            <property name="visible">True</property>
+            <property name="title" translatable="yes" context="shortcut window">Collapse folder</property>
+            <property name="accelerator">Left</property>
+          </object>
+        </child>
         <child>
           <object class="GtkShortcutsGroup">
             <property name="visible">True</property>