[FW][FIX] point_of_sale: load product requests

[fw-bot]

When the pos was loading only a part of the products, the request should follow those rules order:

• product is a favorite
• product is a service
• product had stock moves soon
• product update

But this request didn't take into account consumables products and if there was no stock move, the value was null and postgres consider null values first when ordering desc. Now with that changes, the order is correctly set based on the rules above.

---

I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

Forward-Port-Of: #129227
Forward-Port-Of: #124223

[robodoo]

Pull request status dashboard.

[fw-bot]

@rhe-odoo @davidmonnom cherrypicking of pull request #124223 failed.

stdout:

Auto-merging addons/point_of_sale/models/pos_config.py
CONFLICT (content): Merge conflict in addons/point_of_sale/models/pos_config.py

stderr:

18:19:49.577622 git.c:463               trace: built-in: git cherry-pick 35a9168a53bded7e13451f4b485443c1b419ea21
error: could not apply 35a9168a53bd... [FIX] point_of_sale: load product requests
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
----------
status:

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.

⚠️ after resolving this conflict, you will need to merge it via @robodoo.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port