Full dev on merchant system, updates slowed. — Human Host Steam update #854221

● Added the function to switch hotbar items with the mouse scroll wheel (disabled by default, can be enabled in Game settings). ● Optimized the building system. You can now fine-tune the position of modules freely without worrying about them falling off after breaking alignment. For example, when placing a wall on a floor, pushing it forward will automatically snap to the edge of the floor, eliminating alignment issues or accidental drops. Placing ceilings is also more convenient, and gaps will no longer appear. ● Fixed a bug where loot crates could spawn infinite items. ● Fixed a bug where the quality of items dropped from storage boxes and loot crates was randomly modified after they were destroyed. ● Fixed a bug where MP5 iron sights could not deal damage. ● Fixed a translation error for "Copper Ingot" in Portuguese. ● Fixed a bug where the English spelling of the names for the Backpa...