getIconCollectionByAlias = collectionName => {
    if (IconCollectionsAlias[collectionName]) {
      return IconCollectionsAlias[collectionName];
    }
    return collectionName;
  }
Returns the collection name for a given alias:

- "SAP-icons-TNT"resolves to "tnt"
- "BusinessSuiteInAppSymbols" resolves to "business-suite"
- "horizon" resolves to "SAP-icons-v5"

@param { string } collectionName
@return { string } the normalized collection name