To mount the LED Strip Add-on at the top of the Prusa Enclosure together with the Slider Lock Latch, you'd need to utilize the same holes in the enclosure for both parts. So the screw needs to go the opposite way through the bracket and into the latch.
To make that possible, you may want to use this remix.
Other parts required:
The author remixed this model.
Changed Bracket hole to fit screw head instead of hex nut.