Standalone NICs not listed in Endpoint node

**Describe the bug**
When a standalone NIC (not attached to a resource) is deployed in Azure, the IPAM app identifies this and the number of assigned IPs for corresponding subnet in the subnet node is increased by 1. However, the NIC is not listed in the endpoint node. This leads to a mismatch between the number of assigned IPs in a subnet and the number of endpoints in that subnet.

**To Reproduce**
Steps to reproduce the behavior:
1. Deploy a standalone NIC in Azure
2. In IPAM app, visit the subnet node and confirm that the number of assigned IPs had increased by 1.
3. In IPAM app, visit the endpoint node and confirm that the deployed NIC does not appear in the list.

**Expected behavior**
Standalone NICs are included in the endpoint list

**Screenshots**
_3 IPs assigned in subnet (x1 NIC + x2 VMs)_

_2 IPs in endpoint list_