[Minor Bug] Prep Stations requires 6 solid tiles below it

[Nestorboy]

Issue Description

A thorough description of the problem, including:
Expected behavior: Prep Station should only require 5 solid tiles below it as it's 5 tiles wide.
Actual behavior: The Prep Station requires 5 solid tiles below it along with one additional one to the right of the others.
Mod list: Starlight River (dev build), DragonLens (1.8.2)
Reproduction: Build a platform of 5 solid tiles and try placing the Prep Station on it. Alternatively, if you make the platform 6 solid tiles wide and place the Prep Station on it, breaking the right-most tile will cause the station to break as well.