Upload to Active Storage when paste images with CTRL + V

Hello, I use Trix to create a chat on my website and I am having the following problem.

Users are copying images (Github, discord) and placing them using CTRL + V, however, the URL of these sites remains expired and over time the image is lost, giving the user the false impression that the image was sent.

I would like to know if there is any functionality that already does this upload when ctrl + v is pressed or if there is an event that I could listen to to download and send to Active Storage to persist in my backend.

When dragging and dropping the image on my machine it works, but I would like to upload images pasted using CTRL + V.

Below is a GIF exemplifying the image pasted with the Discord URL:


Here's a GIF of the functionality I'd like to have on Github:

The issue names no file, test, or entry point. Start by locating Trix's paste handling and existing drag-and-drop upload behavior, then determine whether pasted external images should be persisted through Active Storage; done would require an agreed behavior and corresponding tests.

Written by the indexing model from the issue text.