fix: when hide plugin,setting button sholud be hided.

as title.

PMS-BUG-310045

Author: wjyrich

plugins/dde-dock/common/jumpsettingbutton.cpp

@@ -79,6 +79,10 @@ bool JumpSettingButton::event(QEvent* e)
         m_hover = e->type() == QEvent::Enter;
         update();
         break;
+    case QEvent::Hide:
+        m_hover = false;
+        update();
+        break;
     default:
         break;
     }

plugins/dde-network-display-ui/plugins/dock-wirelesscasting-plugin/src/widget/jumpsettingbutton.cpp

@@ -79,6 +79,10 @@ bool JumpSettingButton::event(QEvent* e)
         m_hover = e->type() == QEvent::Enter;
         update();
         break;
+    case QEvent::Hide:
+        m_hover = false;
+        update();
+        break;
     default:
         break;
     }