Feature Request: Store the date when an item gets checked

[Welcius]

Is your feature request related to a problem? Please describe.
I like to keep track of which items I check on a daily basis, it is very useful for trades, general overviews...

Describe the solution you'd like

• The date should be stored whenever a new item/item variant is checked and past checked items should have a null date value.
• A new filter should be added to be able to query by days, such as: before date, after date, specific date and range date.
• A view to easily check which items you have checked today, yesterday and past week.

Describe alternatives you've considered

• Constantly check trading websites purchase history.
• Writing down the items which I obtained today.

Additional comments
I feel like storing metadata about the items is becoming a necessity, so I think it would be a good idea to transform the local storage data structure to handle new features such as this one.