F 修复从模版添加内容可能会出现undefined问题

spug_web/src/pages/monitor/Form.js

@@ -45,7 +45,7 @@ class ComForm extends React.Component {
       port: undefined,
       host: undefined,
       process: undefined,
-      command: undefined,
+      command: '',
       showTmp: false,
       page: 0,
     }

spug_web/src/pages/schedule/Form.js

@@ -28,7 +28,7 @@ class ComForm extends React.Component {
       page: 0,
       nextRunTime: null,
       args: {[store.record['trigger']]: store.record['trigger_args']},
-      command: store.record['command'],
+      command: store.record['command'] || '',
     }
   }