It may not look too fancy, but Toffee is hoping you’ll choose its Slim Folio for iPad mini ($70) over similar designs based on the premium genuine leather exterior. The hard shell case is what we’ve come to expect lately, with soft material going all the way to the four edges with cutouts where necessary. Button coverage is omitted, but users can activate the stand mode by tucking the closure tab into the back shell when the lid’s folded behind it.…