It's actually a good idea to check for uploaded versions in the theme folder. It would solve the problem of making those files persistent. Great idea! I'm putting this on the TODO list right away.
Actually there is an option to increase the viewport size to disable the scrolling. Open the search instance options, then Theme Options -> Vertical Results panel, and scroll to the Results box viewport (in item numbers) option. By default it's 4. Change that to something bigger, like 100. That should get rid off the scrollbar.Best,
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