Service Subscription | External Service details are missing.

[tfjanjua]

Current Behavior

External Service details are missing from the following API response

API: /api/services/{serviceId}/subscription/{subscriptionId}/provider
Method: GET
Response Data:

{
    "id": "db1a7759-cc33-4a9a-a5c8-f89430886af9",
    "offerSubscriptionStatus": "ACTIVE",
    "name": "Jupiter Test Pumpkin",
    "customer": "Jupiter Test2 V",
    "bpn": "BPNL00000000071A",
    "contact": [
        "sana.saleem+volks@cofinity-x.com"
    ],
    "technicalUserData": [
        {
            "id": "a8962456-56bb-43e5-bd95-ee0b1115216b",
            "name": "sa30",
            "permissions": [
                "BPDM Pool Admin"
            ]
        }
    ]
}

Phil has worked and responded External Service Details for Apps only.
#867
eclipse-tractusx/portal#385

Expected Behavior

External Service details should be available as frontend is expecting External Service Details on UI.
eclipse-tractusx/portal-frontend#940

Steps To Reproduce

1. Navigate to Service Subscription page
2. Click on arrow (details button)
3. Check api response, External Service Details are missing.

Corresponding Configuration Ticket

This change also required the addition of configs:
eclipse-tractusx/portal#459