[Feature] change Nourishing status effect for compatibility with Saturation Plus and similar mods

[cosmicapiary]

Nourishing grants the player additional saturation every few seconds. with a mod like Saturation Plus or similar, which uncap saturation values, it makes these potions (especially higher levels of Nourishing) give essentially infinite hunger which is quite odd.
my request is a simple change, if the player is at or above 20 saturation, Nourishing does not grant any saturation