Fixed Trade activity in Profile shows wrong time of sold items

Device: PC
Browser: Chrome
OS: Win10

Steps to reproduce:
1. Create an item offer.
2. Wait a few days.
3. Set it to "sold".
4. Go into View Account profile and check the "Trade Activity" Card.
5. "Past (sold) trades" shows the item with "Sold <CREATION Time> days ago". Instead of "Sold <SELL date> days ago."

Anything else to add:
The time that's added behind the sold item is the date of creation of the item, instead of the date of selling the item.