added icon to manager action

Author: s-m-e

qgist/workbench/core.py

@@ -117,6 +117,9 @@ def initGui(self):
 
         self._ui_dict['action_manage'] = QAction(translate('global', '&Workbench Management'))
         self._ui_dict['action_manage'].setEnabled(False)
+        self._ui_dict['action_manage'].setIcon(QIcon(os.path.join(
+            self._plugin_root_fld, ICON_FLD, PLUGIN_ICON_FN
+            )))
 
         workBenchMenuText = translate('global', 'Qgist Work&bench')
         self._iface.addPluginToMenu(workBenchMenuText, self._ui_dict['action_manage'])