设置中添加QQ群号，链接改为可点击，搜索后关键词不清空

src/mainwindow-dtk.cpp

@@ -181,7 +181,6 @@ MainWindow::MainWindow(QWidget *parent)
             } else {
                 ui->applistpage_1->getSearchList(searchtext);
                 switchPage(AppPageSearchlist);
-                searchEdit->clearEdit();
             }
         }
         this->setFocus();
@@ -319,4 +318,4 @@ void MainWindow::closeEvent(QCloseEvent *event)
     } else {
         event->accept();
     }    
-}
+}