Warn a user if he's about to add a product that belongs to bookland in a product_type other than Open Products Facts

[teolemon]

Problem

• Warn a user if he's about to add a product that belongs to bookland in a product_type other than Open Products Facts
• https://en.wikipedia.org/wiki/Bookland
• 977, 978, 979
• We could even blacklist prefixes by well known cosmetic companies (eg https://world.openbeautyfacts.org/code/4005808xxxxxx) but it's a bit more risky
• https://world.openbeautyfacts.org/codes

[monsieurtanuki]

More broadly, there are properties hidden within barcode digits that we don't take advantage of, like the checksum or the company.

Btw I've just found that in https://www.lineaires.com/la-distribution/carrefour-la-revolution-du-qr-code-est-en-marche:

Carrefour annonce que dès 2025, le QR code commencera à remplacer le code-barre lors du passage en caisse. La bascule se fera lors de rénovations de packagings, soit 2.000 références MDD dès 2025, puis 3.000 de plus en 2026 et tout le reste en 2027.

Fun fact: we're in 2025.

Therefore we may prioritize handling QR codes instead of most issues, mayn't we? (not sure about the correctness of the "mayn't we")