Qt6 migration fixes: RTI DDS alias targets, ErrorMessage namespace, DDS header include path

qt6-after/qt6-migrated-legatus/Lts/Common/LtsProjectionWorkstation/WebSocket/messages.cpp

@@ -175,7 +175,7 @@ bool CTS::DisconnectRequest::hasValidData() const
     return true;
 }
 
-ErrorMessage::ErrorMessage(const QString& uuid, const QString& reason)
+LtsProjectionWorkstation::ErrorMessage::ErrorMessage(const QString& uuid, const QString& reason)
     : Message(nullptr, nullptr, JsonKeys::ERROR_MESSAGE(), uuid, QJsonValue()), m_reason(reason)
 {
     QJsonObject result;
@@ -183,7 +183,7 @@ ErrorMessage::ErrorMessage(const QString& uuid, const QString& reason)
     m_replyData = result;
 }
 
-void ErrorMessage::process()
+void LtsProjectionWorkstation::ErrorMessage::process()
 {
     if (!m_handler || !m_client)
         return;
@@ -192,7 +192,7 @@ void ErrorMessage::process()
     m_handler->handleMessage(this);
 }
 
-bool ErrorMessage::hasValidData() const
+bool LtsProjectionWorkstation::ErrorMessage::hasValidData() const
 {
     if (!m_handler || !m_client)
         return false;