Resolve #3436501 "Implement a toggle"

Closes #3436501

config/install/frontend_editing.settings.yml

@@ -6,3 +6,9 @@ hover_highlight: false
 exclude_fields: {  }
 automatic_preview: false
 primary_color: '#a9a9a9'
+ui_toggle: true
+ui_toggle_settings:
+  offset_top: ''
+  offset_bottom: 50
+  offset_right: 50
+  offset_left: ''