This fix prevents an error when creating an invoice from a sales order line that has no product. Sales teams can now handle incomplete or empty sales orders more smoothly without the process failing unexpectedly.

Description of the issue/feature this PR addresses:
Improve the behaviour of the sale subscription dashboard for salesman.




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The eBay sales integration now avoids unnecessary warning messages when it is installed but not yet configured. This keeps scheduled background checks from cluttering logs, making monitoring cleaner for teams that are not actively using the integration.

When sale_ebay is installed but not configured, its crons are frequently 
raising unnecessary warnings, and polluting logs.

A small typo in a filtering rule caused the inter-company sales and purchase screen to crash in the browser. This update corrects the typo so users can open and use the affected configuration without interruption.

The domain operator is 'not in ' (notice the trailing space).
With that trailing space, the operator is not recognized as a supported
operator and the domain interpretation crashes (JS side).

Domain introduced in 7570c39