Consider using a more accurate nsfwjs model

[morguldir]

The default one seems slightly inaccurate in some cases, for example the default model identifies this image of my element web call stack as a high chance of being porn

Default	MobileNetV2Mid

In particular, i suggest changing to https://github.com/infinitered/nsfwjs?tab=readme-ov-file#load-the-model "MobileNetV2Mid", the InceptionV3 model might be interesting too, but not sure how it would affect size