adding GPT4o support

[hoyleb]

Dear amazing team!
I would love to be able to use GPT4o for, e.g. image uploading etc. I'm not sure how to best enable this myself (maybe with a tool?) maybe you can give me some ideas.

<3 the project, and are using it in my company.
Ben

[hoyleb]

I solved this task by enabling image uploads in the front and back end, and the modifying the frontend code to append the file as a human message to send to the back end. no other changes were necessary