[Feature] Duplicate Filter

[Deekerman]

Is your feature request related to a problem? Please describe. Sometimes when you dump in a lot of games you can have some that are mistagged and end up with duplicate games even tho one of them is actually a slightly different title

Describe the solution you'd like show duplicates the same you filter missing unmatched

Describe alternatives you've considered I donno

Additional context Seems like a neat idea.