Set OSD Value before we toggle whether progress bar is shown or not

This prevents file:///usr/share/plasma/look-and-
feel/org.kde.breeze.desktop/contents/osd/Osd.qml:93:20: Unable to assign
QString to double

BUG: 339581

shell/osd.cpp

@@ -115,8 +115,8 @@ void Osd::showProgress(const QString &icon, const int percent, const QString &ad
 
 void Osd::showText(const QString &icon, const QString &text)
 {
-    m_osdObject->rootObject()->setProperty("osdValue", text);
     m_osdObject->rootObject()->setProperty("showingProgress", false);
+    m_osdObject->rootObject()->setProperty("osdValue", text);
     m_osdObject->rootObject()->setProperty("icon", icon);
 
     showOsd();