UI : Show the Backup repository as column in Backup offerings view

### The required feature described as a wish

Currently, if there are multiple back up repository in Cloudstack

Its difficult to identify the backup offerings associated with the backup repository from the UI.

Expected behaviour

It would be great if the backup column is added to the backup offerings view

also the backup repoistory is mentioned as External id (uuid) it would be great if the backup reposistory name is mentioned

https://cloudstack.apache.org/api/apidocs-4.22/apis/listBackupRepositories.html
https://cloudstack.apache.org/api/apidocs-4.22/apis/listBackupOfferings.html

Comienza con la documentación de la API de listBackupRepositories y listBackupOfferings enlazada en el issue; después, localiza la vista Backup Offerings y determina cómo se rellena actualmente su identificador de repositorio. Se considera completado cuando la vista muestra una columna de repositorio de backup con el nombre del repositorio, en lugar de mostrar únicamente su ID externo, para las ofertas asociadas a varios repositorios.

Escrito por el modelo de indexación a partir del texto del issue.