T1328637 - List - Select All checkbox aria-label does not reflect the selectAllText value

[dmlvr]

No description provided.

[Copilot]

Pull request overview

Updates DevExtreme List’s “Select All” accessibility labeling so that ARIA labels reflect the selectAllText option (including when changed at runtime), and adds regression tests for T1328637.

Changes:

• Use selectAllText (instead of the default localized “Select All”) for the Select All checkbox aria-label.
• Use selectAllText as the prefix for the Select All container aria-label (state suffix remains localized).
• Add QUnit accessibility coverage for initialization and runtime selectAllText changes.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/devextreme/testing/tests/DevExpress.ui.widgets/listParts/commonTests.js	Adds accessibility regression tests ensuring Select All ARIA labels reflect selectAllText on init and after runtime updates.
packages/devextreme/js/__internal/ui/list/list.edit.decorator.selection.ts	Updates Select All checkbox/container ARIA labels to use selectAllText instead of always using the default localization key.