searchdialog.cpp - activateWindow on showEvent for ease-of-use

now the focus is always ready to go in the lineedit
and the searching process is smoother.

src/dialog/searchdialog.cpp

@@ -96,6 +96,7 @@ SearchDialog::~SearchDialog()
 void SearchDialog::showEvent(QShowEvent *event)
 {
     Q_UNUSED(event)
+    activateWindow();
     m_ui->searchEdit->setFocus();
 }