[IMP] website_sale_product_display_unit: Increase priority of templates

[carmenbianca]

Description

If another module appends to the same line, this module should go first.

Odoo task (if applicable)

https://gestion.coopiteasy.be/web#view_type=form&model=project.task&id=9377&active_id=9377&menu_id=

Checklist before approval

• [ ] Tests are present (or not needed).
• [ ] Credits/copyright have been changed correctly.
• [ ] Change log snippet is present.
• [ ] (If a new module) Moving this to OCA has been considered.

[remytms]

/ocabot merge patch

[github-grap-bot]

This PR looks fantastic, let's merge it! Prepared branch 12.0-ocabot-merge-pr-271-by-remytms-bump-patch, awaiting test results.

[github-grap-bot]

Congratulations, your PR was merged at 0258ec2e441f4d9434e7661d1fcd20bcb36c86b5. Thanks a lot for contributing to coopiteasy. ❤️