[AFV] Ref T730, added graceful shutdown in AFV client itself

Also disconnect from network during "shutdown"

src/blackcore/afv/clients/afvclient.cpp

@@ -220,6 +220,7 @@ namespace BlackCore
                 m_startDateTimeUtc = QDateTime::currentDateTimeUtc();
                 m_connection->setReceiveAudio(true);
                 m_voiceServerPositionTimer->start(PositionUpdatesMs);
+
                 this->onSettingsChanged(); // make sure all settings are applied
                 m_isStarted = true;
                 CLogMessage(this).info(u"Started [Input: %1] [Output: %2]") << inputDevice.getName() << outputDevice.getName();
@@ -672,6 +673,14 @@ namespace BlackCore
                 return m_connection->updateVoiceServerUrl(url);
             }
 
+            void CAfvClient::gracefulShutdown()
+            {
+                this->stopAudio();
+                this->disconnectFrom();
+                this->quitAndWait();
+                Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Needs to be back in current thread");
+            }
+
             void CAfvClient::initialize()
             {
 #ifdef _WIN32

src/blackcore/afv/clients/afvclient.h

@@ -221,6 +221,9 @@ namespace BlackCore
                 //! Update the voice server URL
                 bool updateVoiceServerUrl(const QString &url);
 
+                //! Gracefully shut down AFV client
+                void gracefulShutdown();
+
             signals:
                 //! Receiving callsigns have been changed
                 //! \remark callsigns I do receive

src/blackcore/context/contextaudio.cpp

@@ -105,8 +105,7 @@ namespace BlackCore
         {
             if (m_voiceClient)
             {
-                m_voiceClient->stopAudio();
-                m_voiceClient->quitAndWait();
+                m_voiceClient->gracefulShutdown();
                 Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(m_voiceClient), Q_FUNC_INFO, "Needs to be back in current thread");
                 m_voiceClient = nullptr;
             }