Better display for `errors::Logic`

[divarvel]

authorization failed: an allow policy matched (policy index: 0), and the following checks failed: [Authorizer(FailedAuthorizerCheck { check_id: 0, rule: "check if right(\"efgh\")" }), Block(FailedBlockCheck { block_id: 1, check_id: 0, rule: "check if operation(\"read\")" })]