[epiphany] Add Import/Export bookmarks to Keyboard Shortcuts page

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 6f4e816a821c2f72165a314592c1867542f7b0be
Author: Sabri Ünal <libreajans gmail com>
Date:   Tue Jan 28 20:17:46 2020 +0300

    Add Import/Export bookmarks to Keyboard Shortcuts page

 src/resources/gtk/shortcuts-dialog.ui | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/src/resources/gtk/shortcuts-dialog.ui b/src/resources/gtk/shortcuts-dialog.ui
index a33d7a8b3..eaccb93e8 100644
--- a/src/resources/gtk/shortcuts-dialog.ui
+++ b/src/resources/gtk/shortcuts-dialog.ui
@@ -226,6 +226,20 @@
                 <property name="accelerator">&lt;Primary&gt;D</property>
               </object>
             </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">True</property>
+                <property name="title" translatable="yes" context="shortcut window">Import 
bookmarks</property>
+                <property name="accelerator">&lt;Shift&gt;&lt;Primary&gt;M</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">True</property>
+                <property name="title" translatable="yes" context="shortcut window">Export 
bookmarks</property>
+                <property name="accelerator">&lt;Shift&gt;&lt;Primary&gt;X</property>
+              </object>
+            </child>
             <child>
               <object class="GtkShortcutsShortcut">
                 <property name="visible">True</property>