Minor Fixes - Fixed a Few Issues Affecting Gameplay — Oxygen Train Steam update #3917779

Fixes0. Fertilizer System Update-When all plants in a planter are fully grown, the green indicator showing that fertilizer is active will no longer be displayed.-The fertilizer value will be retained until new growing plants appear.1. Erroneous Popup Fix-Fixed an issue that incorrectly reported that the Steam service could not be initialized.-Both Steam Online Mode and the normal Offline Mode can now enter single-player games.2. Bandit Train Fixes-After the bandit gunner is killed, the bandit train will stop in place and no longer continue its pursuit.-After the driver is killed, the bandit train cannot move, but the gunner will become enraged and keep firing furiously at the target.-An enraged gunner can fire up to 30 shots before stopping the attack.3. Achievement System Fix-Fixed an issue where spending Oxygen Coins to switch characters did not increase the spending progress of the re...