Rename Error to ApiError to avoid ambiguity

[dvaldivia]

This PR renames the error type we used called Error to ApiError to avoid ambiguity. It also removes the redundant Code field as the http response always has a statusCode.

This results in much simpler code written both on Go and Typescript.

After removing the ambiguity, code in Typescript can actually rely on type inference from the generated swagger API since we no longer have ambiguity with Error, this also means we have at least 3 less imports per component file at the top.

Before

api.policies
      .listPolicies()
      .then((res: HttpResponse<ListPoliciesResponse, ApiError>) => {
        const policies = res.data.policies ?? [];
        isLoading(false);
        setRecords(policies.sort(policySort));
      })
      .catch((err: ErrorResponseHandler) => {
        isLoading(false);
        dispatch(setModalErrorSnackMessage(err));
      });

After

api.policies
      .listPolicies()
      .then((res) => {
        const policies = res.data.policies ?? [];
        isLoading(false);
        setRecords(policies.sort(policySort));
      })
      .catch((err) => {
        isLoading(false);
        dispatch(setModalErrorSnackMessage(err));
      });

[kaankabalak]

Hi @dvaldivia, the lint check seems to be failing with the following messages:

Error: restapi/user_objects.go:43:12: could not import github.com/minio/console/restapi/operations/object (-: # github.com/minio/console/restapi/operations/object
Error: restapi/operations/object/download_multiple_objects_responses.go:88:18: undefined: models.Error
Error: restapi/operations/object/download_multiple_objects_responses.go:1[14](https://github.com/minio/console/actions/runs/5852265254/job/15864218789?pr=2954#step:4:15):70: undefined: models.Error
Error: restapi/operations/object/download_multiple_objects_responses.go:120:69: undefined: models.Error) (typecheck)
	objectApi "github.com/minio/console/restapi/operations/object"
	          ^
Error: restapi/user_objects.go:640:145: undefined: models.Error (typecheck)
func getMultipleFilesDownloadResponse(session *models.Principal, params objectApi.DownloadMultipleObjectsParams) (middleware.Responder, *models.Error) {
                                                                                                                                                ^
Error: restapi/user_objects.go:119:19: undefined: models.Error (typecheck)
		var err *models.Error
		                ^
Error: restapi/user_objects_test.go:1458:[17](https://github.com/minio/console/actions/runs/5852265254/job/15864218789?pr=2954#step:4:18): undefined: models.Error (typecheck)
		want1 *models.Error
		              ^

[dvaldivia]

fixed @kaankabalak

[bexsoft]

LGTM