Users lose 4gb of storage space permanently after deleting the app

I tried the DiffusionBee for a bit and decided it is not for me. When uninstalling, I happened to ask the question, what happens to the models that the app made me download? Would they get deleted with the app?

Short answer is no. The app creates a hidden folder ~/.diffusionbee to download the models and deleting the app won't clean up the models for you. And finding the model files wasn't easy as nothing showed up when searching through Finder. I was only able to find the files this by looking through the code for where models are downloaded to: https://github.com/divamgupta/diffusionbee-stable-diffusion-ui/blob/4f1d501bef8d2b26f7d92b9f519ac1a69921eea3/backends/stable_diffusion_tf/downloader.py#L8

I think most people won't realize the models aren't deleted with the app and that will end up costing them ~4gb of space on their Mac permanently. IMO, this needs to be addressed as it's not very user friendly.

Some alternatives are:
- Allow users to pick where they want their models to be downloaded
- Download models directly into the app package? (don't know if this is feasible)
- Let users load their own models

If anyone else is wondering, I ran the following command in a terminal to delete the downloaded models.
```
rm -r ~/.diffusionbee
```