Extend incentive reward periods for Kava Earn and Kava Lend

1. Parameter change cosmos.params.v1beta1

   {
       "@type": "/cosmos.gov.v1.MsgExecLegacyContent",
       "content": {
           "@type": "/cosmos.params.v1beta1.ParameterChangeProposal",
           "title": "Extend incentive reward periods for Kava Earn and Kava Lend",
           "changes": [
               {
                   "key": "EarnRewardPeriods",
                   "value": "[{\"active\":true,\"collateral_type\":\"bkava\",\"start\":\"2022-10-26T15:00:00Z\",\"end\":\"2026-10-26T15:00:00Z\",\"rewards_per_second\":[{\"denom\":\"ukava\",\"amount\":\"19025\"}]}]",
                   "subspace": "incentive"
               },
               {
                   "key": "HardSupplyRewardPeriods",
                   "value": "[{\"active\":true,\"collateral_type\":\"usdx\",\"start\":\"2022-11-11T15:00:00Z\",\"end\":\"2026-10-26T14:00:00Z\",\"rewards_per_second… (1,673 characters)",
                   "subspace": "incentive"
               }
           ],
           "description": "# Description\nThis proposal extends Kava Earn incentives for BKAVA deposits through October 2026. Also extends Kava Lend incentives through October 2026."
       },
       "authority": "kava10d07y265gmmuvt4z0w9aw880jnsr700jxh8cq5"
   }

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