How do we respond to someone who claims that the Qur'an is contradictory because Allah beautifies the deeds of disbelievers in verse 4 of Surat An-Naml, while Satan beautifies their deeds in verse 24 of the same surah?

Allah attributed the beautification of deeds to Himself as a form of appreciation, and to Satan directly. So, the beautification from Allah is a trial and a punishment for the servant for his turning away, while from Satan it is temptation and injustice. All of this occurs by the will and power of Allah, and He is the Creator of all. The beautification of good is done through angels and believers, while the beautification of evil is done through devils from among jinn and humans.