[enhancement]: Multi-select delete for models and loras

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Contact Details

Discord: @kingsman

### What should this feature add?

When in the Model Manager, I decided to delete a bunch of loras that I no longer wanted by going to the loras folder and deleting them as I thought it would clear them out of InvokeAI Model Manager since there wasn't an option to select multiple and then delete. The one's I deleted are still in the Model Manager.

This feature should allow the user to select a checkbox next to each model/lora they would like to delete and when done selecting, click the Delete button which then will remove them from the Model Manager.

### Alternatives

_No response_

### Additional Content

_No response_