I came across this website that says the name Aleena means silk from heaven is this true? and if so is there proof?

Please see this page for the meaning of Aleena according to the Quran: Aleena

Some Islamic sites say it means "good-looking" or "light". This is incorrect as this is the non-Islamic meaning of the name. Aleena is a variant of Alina and both mean "light" or bringer of light in Greek. In Celtic it means good looking.

I couldn't find any reference to the "silk of heaven" meaning in any trustworthy Islamic sources.