Raise configuration window (MacOS bug)

## Summary

I've added a call to [`dialog->raise()`](https://doc.qt.io/qt-5/qwindow.html#raise) when launching the configuration dialog.

This is intended to fix a MacOS bug where the configuration window launches behind other open windows, but this call shouldn't harm operating systems as well.

BUG: 416050

## Test Plan

### Before:
Configuration dialog launches behind other open windows on MacOS.

### After:
Configuration dialog launches over other open windows on MacOS.

indicator/main.cpp

@@ -83,7 +83,9 @@ int main(int argc, char** argv)
                 dialog->addModule(KPluginMetaData(QStringLiteral("kcm_kdeconnect")));
                 dialog->setAttribute(Qt::WA_DeleteOnClose);
                 dialog->show();
+                dialog->raise();
             } else {
+                dialog->raise();
                 dialog->activateWindow();
             }
         });