[Feature Request] Better Playlist Len Stats leaving the extremes

[whoibrar]

Issue

Often times there is a playlist where there average is skewed because of one very large video (combination of all previous) or many small videos (trailers / promos of upcoming vids). In these cases the average is skewed.

Feature

Skip the extreme 10% and show another stats (leaving 10% from smallest and largest ones) to have a more balanced view of the playlist!