Add icon for Inspector dock context menu Show in FileSystem item

editor/inspector_dock.cpp

@@ -436,6 +436,7 @@ void InspectorDock::_notification(int p_what) {
 			PopupMenu *resource_extra_popup = resource_extra_button->get_popup();
 			resource_extra_popup->set_item_icon(resource_extra_popup->get_item_index(RESOURCE_EDIT_CLIPBOARD), get_editor_theme_icon(SNAME("ActionPaste")));
 			resource_extra_popup->set_item_icon(resource_extra_popup->get_item_index(RESOURCE_COPY), get_editor_theme_icon(SNAME("ActionCopy")));
+			resource_extra_popup->set_item_icon(resource_extra_popup->get_item_index(RESOURCE_SHOW_IN_FILESYSTEM), get_editor_theme_icon(SNAME("ShowInFileSystem")));
 
 			if (is_layout_rtl()) {
 				backward_button->set_icon(get_editor_theme_icon(SNAME("Forward")));