How do I close this small scroll menu on the top left corner of my Dolphin folder?

The top left where it starts above \\"Red Dad Rede...\\"

I had a small incident where I caused something to fall on my desk and I got startled. The next thing I saw was this weird file scroll menu on the top left corner. I must have hit a button or clicked on something. I'm unsure how to get rid of that scroll menu. Any ideas? I'd be grateful.

https://redd.it/1th7a01
@r_linux