fixed update functions to work, something is going wrong in the queries and it is always querying restaurant_id = 0, even when it is different
update functions for db working properly, inventory displaying in inventory tab working, money working, life is working
added buying more inventory function, deducts from money, wont let you buy if you dont have enough money
added statistics panel, some issues with inventory button being active when buttons on other panel being pushed still
added inventory panel class