win-dshow: Fix virtual camera filter name

The filter name is supposed to be "OBS Virtual Camera"

plugins/win-dshow/virtualcam-module/virtualcam-module.cpp

@@ -193,7 +193,7 @@ static bool RegFilters(bool reg)
 		rf2.rgPins = &AMSPinVideo;
 
 		hr = fm->RegisterFilter(CLSID_OBS_VirtualVideo,
-					L"OBS Video Output", &moniker,
+					L"OBS Virtual Camera", &moniker,
 					&CLSID_VideoInputDeviceCategory,
 					nullptr, &rf2);
 		if (FAILED(hr)) {