Added discard system, public lobbies, and offline mode

• Added a discard system for getting rid of items that are no longer needed. For example, the king key can be discarded after opening all the king doors and the radio can be discarded after solving the puzzle.

• Added a singleplayer option that will allow the game to be played offline without an internet connection.

• Added the option to choose between starting a private and public lobby when hosting a game.

• Added a new menu for finding public lobbies that have available space and have not started yet.

• Added the ability for the host of a lobby to kick other players.

• Items will now be retrieved from players who disconnect midgame and store them into the item box.

• Ammo will now automatically split into stacks of 20 when storing it into the item box, allowing players to share ammo amongst one another.

• Made it so that a key will no longer spawn if there isn't any doors for it to open.

• Pause screen will now display the list of players in-game.

• Fusebox for the elevator will now be highlighted.

• Added new notification if test tube resets back to default when mixing chemicals.

• Added new notification for when wrong valve handle is used in the greenhouse.

• Made the colour of the blue valve more distinct to avoid confusion with the green valve.

• Fixed issues with French translation for ammunition not displaying the amount.

I want to continue to work on adding more content to the game, but if you run into any issues with the latest update let me know and I'll make it my priority to fix it first. I have some cool ideas planned for this game which I'll posting more about in the near future!