Potential removal of unclaimed winning tokens

The MonadexV1Raffle contract's removeToken function currently lacks a mechanism to handle unclaimed winnings when removing a supported token. This oversight creates a significant vulnerability that could lead to the permanent loss of user funds and undermine the integrity of the raffle system.

In the current implementation, when a token is removed from the supported list, any unclaimed winnings denominated in that token become effectively trapped within the contract. The contract maintains a record of these winnings in the s_winnings mapping, but once the token is no longer supported, users have no way to claim these funds.

Users with unclaimed winnings in the removed token will lose access to their rightfully earned prizes. This represents a direct financial loss for participants, which could range from negligible amounts to potentially significant sums.

Implement a check for unclaimed winnings before token removal. Or alternatively, implement a migration mechanism for unclaimed winnings.