[BUG] Remove use of seasons

[luigi311]

Describe the bug
Might be worth looking into removing the use of seasons as different servers use different metadata providers so its possible that the episodes dont actually line up on a season by season basis. This is most obvious with shows like one piece, while its possible to split it into multiple seasons if you name the file correctly, if you look at the metadata it makes them all as just 1 season. I dont know how much of an effect this will have on performance though as for large shows we will no longer be skipping seasons that dont need to be marked.