Switch to side-by-side view

--- a/GUI/mainw/mw_controls.cpp
+++ b/GUI/mainw/mw_controls.cpp
@@ -141,6 +141,7 @@
 void GUI_Player::setMuteUi(bool ismute)
 {
     ui->player_w->volume()->setMuteUi(ismute);
+    m_trayIcon->setMute(ismute);
 }
 
 void GUI_Player::onVolumeStepActivated(int val)