Improve set collecting

few ideas to improve collection management when its set oriented
- quick way to import a set , ex for magic: import lgn adds all Legions cards
- most off the time you have everything but so s:lgn -cn:1,4,25 would be even nicer
- a binder view would also be nice. In my excel tracker i use displays of 3×3 cells because they mimic the binder sheets, and it makes things way more easy to browse
at least for checking what you have and what you dont have
- clarify what lists are because i added some stuff in my inventory, then created lists and ended up with 0%completion in my lists, it feels a bit weird
- add an evaluation of how much it would require to invest to complete a set (%completion/ %value)