CloudMigration: Interpret error code from migration resource item (#94407)

* start on loading the error code

* error code to message mapping

* use resource code type

* use defined error code

* partial updates from comments

* i18nKey gen

* fixed t

* fixed translations

* typing

pkg/services/cloudmigration/api/api.go

@@ -390,6 +390,7 @@ func (cma *CloudMigrationAPI) GetSnapshot(c *contextmodel.ReqContext) response.R
 			RefID:      results[i].RefID,
 			Status:     ItemStatus(results[i].Status),
 			Message:    results[i].Error,
+			ErrorCode:  ItemErrorCode(results[i].ErrorCode),
 			ParentName: results[i].ParentName,
 		}
 	}