For some reason I’m having a hard time finding the right file to edit (even though I’ve done it before) but I want to move the featured image section to the top of the sidebar for the ‘new post’ editor screen. I know that you can move these around on the screen, but I want to enforce it for post authors by making it above the line, even before publishing options.

Does anyone know the file where these modules are stored so that I can swap their positions in my child theme?