ASMT 3

Main Tasks

add menu option: option 8, allow user to edit post
smart pointers: change list to hold smart ptrs (unique or shared)
friend functions: overload << and >> to print info and prompt user for info for all classes
BIG 3 (of BIG 5): the destructor, the copy constructor, and overload assignment(=) operator for all classes

new types of user: personal and creator
sign up or log in: add option for user to sign up or retrieve account --> option 0 will now redirect user to Instagram340 landing page AND program will not exit directly
linkedbag operator(=) overloading