This is a simple rename diff to make FullScreenViewModal completely generic
This is step 3 in the list below
Outlined below are the steps I will take in this stack (each point here will be it's own diff):
- Introduce FullScreenViewModal file and move everything from the ImageModal file into here, and change what is absolutely necessary (the imports)
- Lift the rendering of mediaModalItem out of FullScreenViewModal
- Finish renaming + updating remaining variables/callbacks to make FullScreenViewModal completly generic
- Introduce UserProfileAvatarModal
Part of this linear task: https://linear.app/comm/issue/ENG-5201/factor-out-viewing-image-multimedia-messages-specific-code-from
Depends on D9496