Ensure we reset any android capture settings on close

* If no capture is loaded after launching a program, the capture settings can
  still be present and cause problems with future launches of applications
  depending on the Android version.

qrenderdoc/Windows/MainWindow.cpp

@@ -488,6 +488,8 @@ MainWindow::~MainWindow()
   m_NetManagerThread->thread()->quit();
   m_NetManagerThread->deleteLater();
 
+  m_Ctx.Replay().DisconnectFromRemoteServer();
+
   // explicitly delete our children here, so that the MainWindow is still alive while they are
   // closing.