fix(Token/ControllerToken): invalid transfer to the token address

[KristenPire]

Scope

The transfer and transferFrom functions were missing a security check to prevent sending tokens to the token contract's own address, which could lead to unintended behavior.

Implementation

Token Contract

Added a require statement in both the transfer and transferFrom functions to ensure that the to address cannot be the token contract's own address.

ControllerToken Contract

Added a require statement in both the transfer and transferFrom functions to ensure that the to address cannot be either the token contract's own address or the frontend's address.