feat: Jan can update Models

[Van-QA]

For now, users will have to remove models and pull again (both remote / local)

We need a UI to update the model within Jan @imtuyethan

[hantran-co]

Just add Update Model in My Models

https://www.figma.com/design/DYfpMhf8qiSReKvYooBgDV/Jan-App-(3rd-version)?node-id=5303-15482&t=xf2rYuvzD97tK6zq-4

Thanks @Van-QA @namchuai

[Van-QA]

That dropdown is only available for local models, can you help us include the UI for remote models as well? @imtuyethan thank you