remove ui namespace which is not really used, move CameraData in camera_modes.h to avoid the inclusion of canva.h

src/log.h

@@ -17,7 +17,7 @@ public:
     bool m_running = false;
     bool m_error = false;
     std::thread m_thread;
-    ui::BlockingQueue<std::string> m_mq;
+    BlockingQueue<std::string> m_mq;
     CURL *curl = nullptr;
     CURLcode res;
     std::string readBuffer;