Customer invoice portal pages now show the message thread directly below the invoice instead of opening it in a separate modal. This makes invoice communication easier to see and use, with layout adjustments to keep the invoice and discussion area aligned cleanly.

No more modal because it's not visible and less handy. Use same behavior as
sales order portal.

Adapt the invoice style to properly adapt and align with the chatter block.

Part of task-37264

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




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Sales quotation templates and product choices now better respect each company in multi-company setups. Shared products remain available by default, while company-specific products and templates can be limited to the relevant company, reducing mistakes when teams work across multiple companies.

task - https://www.odoo.com/web?#id=2025168&action=327&model=project.task&view_type=form&menu_id=4720

pad - https://pad.odoo.com/p/r.503a794118a0591c1424e5d4ba8b20ee

This update brings forward a set of improvements and fixes for rental sales, stock handling, and several country-specific accounting/payroll features. Business users should see more reliable rental availability, better warehouse handling, clearer rental workflows, and updated local reporting/translations.

Rental users will now only see products that are shared across companies or belong to their own company. This keeps the usual shared-product behavior while allowing businesses to restrict specific products to a single company when needed.

task - https://www.odoo.com/web?#id=2025168&action=327&model=project.task&view_type=form&menu_id=4720

pad - https://pad.odoo.com/p/r.503a794118a0591c1424e5d4ba8b20ee