[POS UI Extensions] Unexpected <List /> margin different from previous versions

[timvandam]

Please list the package(s) involved in the issue, and include the version you are using

@shopify/retail-ui-extensions@1.5.1
@shopify/retail-ui-extensions-react@1.5.1

Describe the bug

After upgrading from version 1.4.0 to 1.5.1 the component suddenly has a large horizontal padding. I am not sure whether this is intentional, but it would be great to have a way of disabling this. It seems like this only happens on tablets

Steps to reproduce the behavior:

1. Place a list in 1.4.0 (nice big list)
2. Place a list in 1.5.1 (small list )

Expected behavior

The list should be full width, or at least have an option to make it full-width

Screenshots

Additional context