Web Widget Product Label Section And Note Full Label Sale

This module is a small bridge between the full-label product widget and the Sales app. It changes two things for users.

First, on a sale order line, the label shown and edited in the product field is the line's own description (name). When you type a custom label there, it is saved on the sale order line instead of being replaced by the standard product name. The label text is also displayed in a muted (grey) style in the sale order line widget, so it is visually distinct from the product name.

Second, when you create an invoice from a sale order, the description written on the invoice line is forced to match the description on the sale order line. This happens for normal product lines (not for section or note lines). The rule is applied automatically during invoice preparation, so the invoice keeps exactly the wording you used on the order.

The module touches the sale.order.line model and extends the sale order line product field in the web client. It does not add new menus or screens; it only adjusts existing sale order and invoice line behaviour.