find method
Finds a range covering target, or null if no property covers it.
Searches property by property in file order and returns the first covering range. Use findProp when a specific property is meant.
Implementation
@override
EmojiDataItem? find(int target) {
for (final items in _properties.values) {
final item = findIn(items, target);
if (item != null) return item;
}
return null;
}