Merge pull request #150 from dada513/fix_kwin_icon

Fix freedesktop icons. Again

launcher/Application.cpp

@@ -187,7 +187,9 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv)
     setApplicationName(BuildConfig.LAUNCHER_NAME);
     setApplicationDisplayName(BuildConfig.LAUNCHER_DISPLAYNAME);
     setApplicationVersion(BuildConfig.printableVersionString());
-
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,7,0))
+        setDesktopFileName(BuildConfig.LAUNCHER_DESKTOPFILENAME);
+    #endif
     startTime = QDateTime::currentDateTime();
 
 #ifdef Q_OS_LINUX