Clear default values for New Replica Set and Cluster Component names in UI

Replica Set and Cluster Component names cannot be changed after deployment.
The names are often overlooked while deploying and the defaults accepted configuring the names.
If the fields were blank but mandatory (maybe with examples below the field) customers would be forced to choose logical names for their deployments.

| Field | Current Default Value|
| - | - |
|Replica Set Id | myReplicaSet |
| - | - |
|Cluster Name | myCluster |
|Shard Name Prefix | myShard |
|Config Server Replica Set Name | configRS |