Take the and an green wires from the POT and battery and move them to the left edge. Just the wires, so the wires are effectively the same length and originate from the edge of the PCB. Moving the 9V battery clip to the right edge or along the top is OK too. Just try to keep the wires leaving the board the same length especially the one to the 9V battery clip.
Especially when it comes to the battery connector, having two differnt sized wires, will inevitibaly make the short one see more stress, When both arr about equal, the stress from flexing will be distributed better to both wires.
https://www.electro-tech-online.com/attachments/led-schematic-png.86941/
You also didn't include a power switch. One possibility is to make the power switch wires goto points on the board because it keeps the wire lengths the same for stress, or make the switch and battery connection externally, which now your back to different length wires.
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I'd also consider placing a bypass cap or caps near the IC from pin 4 and 6. Suggestions are a 10 uf tantalum in parallel with a 0.1 uf Ceramic UNLESS the manufacturer's datasheet suggests something else. Not sure if alec has any better suggestions.