Let Mussel Beds stack in players inventory

[Pumking7]

Currently crafting mussel beds makes it so each mussel bed takes up a single inventory slot. This makes it really annoying if you are planning to make a mussel field in your base and makes it frustrating to store them for further use. 

I am not sure whether Mussel beds should stack up to 40 like other ocean plantables (seaweed stalk, coral nubbin) or should stack up to 10 like akin to land plantables (grass tufts, berry bushes etc). However, I believe it should be more than one mussel bed per inventory slot.