Remove copy of package-lock.json for UI dockerfile

[lincent]

The building of the image was broken, issue is tracked to the package-lock.json which was made for windows and not linux. Removed copying so that it gets recreated for correct OS architecture

[github-actions[bot]]

Coverage report for air-quality-ui

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	98.26%	282/287
🟢	Branches	97.5%	78/80
🟢	Functions	93.51%	72/77
🟢	Lines	98.08%	255/260

Test suite run success

63 tests passing in 15 suites.

Report generated by 🧪jest coverage report action from bd0b5dc13470937986e969fecfcb318abe2bb310