feat: introduce x/validate and split x/auth/tx/config (#21822)

tests/integration/slashing/app_config.go

@@ -23,6 +23,7 @@ var AppConfig = configurator.NewAppConfig(
 	configurator.StakingModule(),
 	configurator.SlashingModule(),
 	configurator.TxModule(),
+	configurator.ValidateModule(),
 	configurator.ConsensusModule(),
 	configurator.GenutilModule(),
 	configurator.MintModule(),

tests/integration/slashing/slashing_test.go

@@ -67,6 +67,7 @@ func TestSlashingMsgs(t *testing.T) {
 				configurator.StakingModule(),
 				configurator.SlashingModule(),
 				configurator.TxModule(),
+				configurator.ValidateModule(),
 				configurator.ConsensusModule(),
 				configurator.BankModule(),
 			),