Sankaku Channel/Tag Alias: monogatari -> monogatari_(series)

Aliasing monogatari -> monogatari_(series).

Reason: same series

I don't see monogatari being used as a general tag so I will convert it to a copyright tag and create a wiki page for it.

This should take a standardised monogatari_(series) copyright/wiki for the franchise with each individual title implicating it, unless there are any issues with that arrangement?