[v2] Fix OnyxDataGrid feature order for modifyColumns

[larsrickert]

Why?

Currently, there is an inconsistent behavior how feature mutation.

While mutations, enhanceCells and enhanceRows are sorted largest to smallest (

onyx/packages/sit-onyx/src/components/OnyxDataGrid/features/index.ts

Line 661 in f240bd5

const mutations = features

), modifyColumns are sorted smallest to largest:

onyx/packages/sit-onyx/src/utils/feature.ts

Line 38 in f240bd5

.sort((a, b) => (a?.order ?? 0) - (b?.order ?? 0));

To prevent a breaking change for the user, we will delay this fix until onyx version 2.

Acceptance criteria

• modifyColumns is fixed to also sort largest to smallest

DEV handover checklist

Storybook

DEV handover done with: @ADD_DEV_NAME_HERE

Testing

• covered by visual screenshot tests
• covered by functional tests (Playwright or unit test)

Documentation

• "New" badge in Storybook is added, see storybook-addon-tag-badges
• Storybook code snippets are checked
• component status has been updated in the docs overview

Other

• follow-up tickets were created if necessary (add links below)