Add matrix field in edit image description

Is your feature request related to a problem? Please describe.

At the moment we have two text field in attachment table and in edit attachment description we have an input field for alt field and a textarea for description field, which is limited to 255 chars.

Describe the solution you'd like

Would be good to allow via config to transform this input in a matrix, so that it's possible to add more data for each attachment.

Describe alternatives you've considered

To get a better idea see this https://gyazo.com/4e3c154dbba9fb022b7e25a38d59f127
Which is a separated screen that I made for now to edit images description using matrix field.

Additional context

In my case I need to add different data for images, which then are shown in frontend, see:
https://new.uovodiluc.ch/catalogo-1.html

I did some test described here https://github.com/orchidsoftware/platform/discussions/2037 but I need more time to look into. If there are interest I can try to make a PR.

What do you think?