[BUG]: Chip for sub-category missing

[rubenhorn]

Describe the bug
While the chip for the category (e.g. sustainability) is displayed, the chip for the sub-category (e.g. food) is missing from the crowdaction card/details page.

(Should they also be displayed on the list items?)

To Reproduce
Steps to reproduce the behavior:

1. Open main screen/crowdaction details page

Screenshots

Device information:

• Device: moto g9 play
• OS: Android 11
• Version + build number: 1.0.0+264

[wizlif]

We are assuming that the subcategory will be null sometimes, so we do hide it if it is not provided in the data.

{
    "crowdactionID": "sustainability#food#veganMonth22-12",
    "title": "Vegan month 2022",
    "description": "Let's be vegan for a month",
    "category": "sustainability",
    "location": "NL#Amsterdam",
    "date_start": "2022-12-01",
    "date_end": "2022-12-31",
    "date_limit_join": "2022-12-20",
    "password_join": "myEvent-myCompany2022",
    "commitment_options": [
      {
        "id": "vegetarian",
        "label": "Becoming vegetarian",
        "description": "I will not eat any meat from any animal (including fish).",
        "requires": [
          {
            "id": "no-beef",
            "label": "Not eating beef",
            "description": "I will avoid eating beef (Goodbye stake)."
          }
        ]
      }
    ],
    "participant_count": 1,
    "top_participants": [
      {
        "name": "Peter Parker",
        "userID": "6620cf87-44ed-456e-9798-d5cbeb7fa10a"
      }
    ],
    "images": {
      "card": "https://images.unsplash.com/photo-1498837167922-ddd27525d352?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=640",
      "banner": "https://images.unsplash.com/photo-1498837167922-ddd27525d352?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=640"
    }
  }