Product attribute demo data has been consolidated and cleaned up to avoid duplicate entries across sales, point of sale, restaurant, matrix, and online shop demo setups. This makes demo data more consistent and easier to reuse across Odoo modules, with no expected impact on live business operations.

Clean product attributes to avoid duplicates, and move them to product module for reuseability

Was initially a part of https://github.com/odoo/odoo/pull/205187 but moved for simplicity

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Product attribute demo data has been moved into the core product area so it can be reused consistently by related apps. This is an internal cleanup that helps reduce duplication and makes demo data easier to maintain across barcode lookup, rental, website, and manufacturing examples.

Move product attribute data to product module for reusability