Extend xWALLET staking for a third year

The first two years of xWALLET staking were additionally incentivized (on top of fee buybacks) with a 4% of the total WALLET supply.

This period ended in February 2024.

We propose that we extend the staking incentive with an additional 4% (of the total supply) for the next year, due to success of the staking initiative so far - more than 64% of the circulating WALLET supply is currently staked. The additional 4% will come out of the DAO allocation and only amount to approximately 7% additional issuance, which won't go into circulation as it's distributed in staking rewards which are locked by default.

We are also introducing a third voting option: "halving" extend the staking with a total of 2% of the total supply distributed over the next year, which will amount to approximately 4% additional issuance.