Prop 213: MantaDAO <-> Stride token swap deal

MantaDAO is offering a token swap deal with Stride. #Total STRD requested for the deal: 141,350

Proposal: https://commonwealth.im/stride/discussion/12828-mutual-token-swap-between-stride-and-mantadao-in-order-to-build-liquidity-on-kujiras-fin-dex