• Fixed multiplier save bugs

• Added offline earnings (there isn't a thing that says it, but it will add it when you join back)

• Added rebirth system

I have wanted to add this for a while, it's pretty crucial to any clicker game. Anyway, the more you rebirth, the bigger the multiplier, but the more expensive it gets. I'll probably make this more complicated later, but idk.

This was a small QOL change that's a thing in multiple clicker games, tiny add, big gameplay reward.

If players loaded a save, it would mistake the multiplier value for the date value used in the offline earnings system, this caused the multiplier to be like 1700000000 or something like that. It's so high because for the offline earnings equation, I use Date.now(), which uses milliseconds since 1970.