perf: Remove indentation in REST respones (#16142)

server/api/server.go

@@ -63,7 +63,7 @@ func New(clientCtx client.Context, logger log.Logger, grpcSrv *grpc.Server) *Ser
 	// Using the gogo/gateway package with the gRPC-Gateway WithMarshaler option fixes the scalar field marshaling issue.
 	marshalerOption := &gateway.JSONPb{
 		EmitDefaults: true,
-		Indent:       "  ",
+		Indent:       "",
 		OrigName:     true,
 		AnyResolver:  clientCtx.InterfaceRegistry,
 	}