Can not translate the landing text using datapack

[marlester-dev]

Describe the feature

Though patchouli uses assets now, it still loads book.json from data. I can't override it with a datapack and thus can't translate this file:
\data\adventurez\patchouli_books\adventurez\book.json

{
    "name": "item.adventurez.handbook",
    "landing_text": "This is the AdventureZ handbook and contains information about most mobs/items/blocks to help you figure out how stuff works and what will await for you!",
    "subtitle": "Creatures await you",
    "show_progress": false,
    "model": "adventurez:handbook",
    "dont_generate_book": true,
    "custom_book_item": "adventurez:handbook",
    "use_resource_pack": true
}

Additional context

No response