Update v1.2:

In this release you will notice the following changes to the potions mini-games:
- A potions tutorial
- Hints and Tips updated to offer more guidance
- Colour/Shape coding to make it easier to identify acids and alkalines
- Potion mixing rules improved to encourage experimentation
- An "improvisation" option added for the heat of the moment

We have fixed the following issues raised by the community:
- numerous quit and continue issues in the police station
- some issues with progress stalling if quitting and continuing during key branching moments in the story
- issues where journals sometimes fail to open, close or are missing pages
- an issue where leaving the chemist can result in a grey screen
- an issue with interaction icons not showing up when starting new game immediately after completing the epilogue
- facial animations failing to play in chemist Ch2