Fixed : Overflow in Upload Modal

[Keshav-0907]

Fixes #2983

Changes: Added a max-height and overflow :auto to the dropzone

Screen.Recording.2024-02-04.at.8.51.27.PM.mov

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #2983

[lindapaiste]

Thanks for the video! It saves me a lot of work of having to test it out myself. This looks like a solid change.