When auto-opening a single capture, try to raise the texture viewer

* This gives a better 'first impression' when opening a capture than
  falling back to the last panel that is the launch executable panel
  in 95% of cases.

qrenderdoc/Windows/Dialogs/LiveCapture.cpp

@@ -1031,6 +1031,10 @@ void LiveCapture::connectionClosed()
     // then don't close just yet.
     if(ui->captures->count() == 1 || m_Children.count() == 0)
     {
+      // raise the texture viewer if it exists, instead of falling back to most likely the capture
+      // executable dialog which is not useful.
+      if(m_Ctx.HasTextureViewer())
+        m_Ctx.ShowTextureViewer();
       selfClose();
       return;
     }