fix: 缺少机身控制鼠标点击选中效果

src/components/MMCFlightControlCenter/components/uavApplications/components/controlPanel/components/controlBottom/components/keyControl/index.vue

@@ -267,6 +267,7 @@ export default {
     clickControl(event) {
       console.log(event.key);
       let data = null;
+      this.keycode = event.key;
       //return
       if (this.enable) {
         this.enable = false;
@@ -330,6 +331,7 @@ export default {
       }
     },
     cancelControl() {
+      this.keycode = '';
       this.stopGimbal();
     },
   },