Odoo Release Updates

[IMP] test_lint{,_enterprise}, *: Index `Many2one` fields in `related` fields

[REF] mail, various: remove useless 'tracking_disable' / 'mail_notrack'

[FIX] sale_amazon: make fulfillment channel editable

[FIX] sale_amazon: allow onboarding in multicompany environment

[FIX] sale_amazon: recognize German addresses

[FIX] sale_amazon: wrong fulfillment channel

[FIX] sale_amazon: test setup

[IMP] *: rename "Cancel" to "Discard"

[FIX] sale_amazon: stop logging access tokens

[FIX] sale_amazon: add _rest carriers for UPS, FedEx, USPS, DHL

[REF] base: make 'is_company' computed, remove company_type

[ADD] *: add apps icons

[FIX] sale_amazon: handle missing warehouse on creation

[IMP] *: remove unnecessary button "Discard" labels

[IMP] *: rename "Cancel" to "Discard"

[IMP] uom: rename logistic fields

[IMP] delivery, *: rename Delivery Carrier/Carrier to Delivery Methods

[FIX] sale_amazon: pass the carrier code in the order fulfillment data

[FIX] sale_amazon: use x.with_prefetch() instead of x[0] to avoid prefetching

[IMP] sale_amazon: improve stock sync logging messages

[IMP] */__manifest__.py: add missing app pages

[REF] *: use ir.config_parameter new API get_xxx, set_xxx

[IMP] core: PG_CONCURRENCY_EXCEPTIONS_TO_RETRY moved to sql_db

[IMP] base,all: remove deprecated 't-esc' ir.qweb directive