Release 0.1.8.3 — Aiyana Steam update #690916

This update brings some further bug fixes, some more optimisations and minor balancing changes. Ideally I would keep this in beta longer but the main branch isn't as stable as I would like so now everything has made its way there. I'm also making good progress on the next content update for Milestones and the Essence Extractor behind the scenes which is why there are some balancing changes as I've spotted issues prepping for them. Optimisations Reduced the distance that pickups are considered active (an optimisation if you leave lots of things around the world without realising) Updated how quickly eggs despawn from the world to be shorter Reworked item pickups to update their logic on a thread. Can halve their CPU time in worlds with lots of pickups Disabled traditional shadow casting for the campfire (a decent performance improvement) Optimised how pickup outlines are rendered Fixed eg...