Add the ability to set a default payment method

update the patch for Drupal 10 & commerce 2.x-dev version

Reroll the patch to the latest dev version

Here is the patch updated for Commerce 3.x

Can we get an MR that applies to 3.x so we can see if the tests are green? The latest patch includes unrelated changes to the CartManager too.

Here is the patch for 3.x without changes to the CartManager.

Is is possible to open a merge request with the changes?