network component: line do not have a name

[MichaelBoegl]

print(opfs[ok]['line'])

{
  "name": {
    "0": null,
    "1": null,
    "2": null
  },
  "std_type": {
    "0": "NAYY 4x50 SE",
    "1": "NAYY 4x50 SE",
    "2": "NAYY 4x50 SE"
  },
  "from_bus": {
    "0": 2,
    "1": 1,
    "2": 0
  },
  "to_bus": {
    "0": 1,
    "1": 0,
    "2": 3
  },
  "length_km": {
    "0": 0.1,
    "1": 0.1,
    "2": 0.1
...
    "1": true,
    "2": true
  }
}