Renamed transit network ID ŽK

[Oivo35]

Hi,
transit network ID ŽK was officially renamed.

Suggestion:
bus route

{
  "displayName": "IDS PLUS",
  "locationSet": {"include": ["sk"]},
  "tags": {
    "network": "Integrovaný dopravný systém PLUS",
    "network:short": "IDS PLUS",
    "network:wikidata": "Q105957236",
    "route": "bus"
  }
},

train route

{
  "displayName": "IDS PLUS",
  "locationSet": {"include": ["sk"]},
  "tags": {
    "network": "Integrovaný dopravný systém PLUS",
    "network:short": "IDS PLUS",
    "network:wikidata": "Q105957236",
    "route": "train"
  }
},