[Icon] UTF Content Accidentally in Class Name for Cube

[idleberg]

I'm not sure what this icon is supposed to be called, but \33d looks like a typo to me (see line 2504)

The corresponding Font Awesome class is fa-cube, here's what it looks like:

[jlukic]

This is a typo. I'll fix

[jlukic]

I removed the duplicate rule since cube icon is already defined. Not sure what the intended alias would have been.