[refactor] add namespace 'crossdesk' to codebase

src/gui/windows/stream_window.cpp

@@ -2,6 +2,8 @@
 #include "rd_log.h"
 #include "render.h"
 
+namespace crossdesk {
+
 void Render::DrawConnectionStatusText(
     std::shared_ptr<SubStreamWindowProperties>& props) {
   std::string text;
@@ -199,4 +201,5 @@ int Render::StreamWindow() {
   ImGui::End();  // End VideoBg
 
   return 0;
-}
+}
+}  // namespace crossdesk