Fix bug with features, benefits, client list
Fix bug with features, benefits, client list

Implements: https://github.com/alphagov/digitalmarketplace-frontend-toolkit/pull/142

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Ensure list entries keep their 'name' attribute

Any changes made to features and/or benefits are not being persisted on a save.

Replication:
- Navigate to the edit features and benefits page of a service.
- Edit features and/or benefits and click "Save and return to service"

Actual:
- Changes made are not persisted

Expected:
- Changes to either features and/or benefits should be persisted.

Reason:
- `name` parameter of each feature is getting changed by the JS from
`serviceFeatures` to `input-serviceFeatures`

alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend