Fix: Pass string list as const so that it's readable from QML.

src/ksession.cpp

@@ -175,7 +175,7 @@ QString KSession::getInitialWorkingDirectory()
     return _initialWorkingDirectory;
 }
 
-void KSession::setArgs(QStringList &args)
+void KSession::setArgs(const QStringList &args)
 {
     m_session->setArguments(args);
 }