Odoo Release Updates

[IMP] product, *: simplify product variant management

[IMP] test_lint, *: Indexing of `Many2one` fields used in `related` fields

[REF] *: refactor product catalog

[IMP] mrp, purchase, sale: reorder `In the order` filter in product catalog

[IMP] *: show price per product unit in product catalog

[FIX] account,repair: Computes should be private

[FIX] *: forms: boxed title and adjusted font size

[IMP] repair: extract the creation of sale order (the record and values) to have some inherit point (useful for integrators)

[FIX] stock: incorrect sequence if adding a product manually in picking

[IMP] product: allow defining specific UoMs/packagings per variant

[FIX] web, *: form: favorite icon in `<h1>`

[IMP] repair: remove return domain on transfer field on repair orders

[IMP] mail: display priority in message inbox

[FIX] repair: Create missing production locations

[REF] *: remove `uom.uom.rounding` field

[FIX] repair: fix error when product is missing on move lines

[FIX] repair: handle missing inventory loss location

[FIX] repair: cancel draft stock moves on repair order deletion

[IMP] stock: allow empty tracking value

[REM] stock: remove return wizard

[ADD] base: update apps icons

[IMP] repair: simplify repair orders

[FIX] repair: add reference to repair order move

[FIX] repair: preserve discount on sale order line from repair quotation

[IMP] web: edit_tags_list

[IMP] uom: rename logistic fields

[IMP] mrp*: reuse _should_assign_at_confirm to avoid duplicated

[FIX] repair: allow serial number only after save

[IMP] *: rework accrual entries for PO/SO

[CLN] *: manifests