Hotfix — Aquarist Steam update #1423843

Changes: -Added the achievement for the axolotl quest that we forgot about last time. If you have already completed this quest, simply enter the Aquarium Exhibition location and the achievement will unlock automatically. -Fixed a bug that, in very rare cases, caused the first visit to the Aquarium Exhibition location to block game progress. Everything should now work correctly. -Fixed an issue where, for some players, the aquarium in the patio at the Aquarium Exhibition was not saving properly. It should now work as intended.