[Feature] filter models by their file type

[notreallyanames]

Summary

Add a filter that can be swapped between either gguf litert or both

Problem / Motivation

I keep trying to find litert models using the app so I don't have to check the pages for those ai models for updates. And it would be more convenient to update those models in-app and create less clutter

Proposed Solution

a filter to filter out models by their file type

Alternatives Considered

downloading the model files to import