fix(ui5-list): fix acc finding

[PetyaMarkovaBogdanova]

1) Tree (1 failing)

• Failing area: noDataText API
• Reported issue: list semantics mismatch (list item without proper list parent context)
• Typical signal: continuum list-structure violation in the no-data row.

Tree	noDataText row breaks list semantics	list-structure violation around no-data row	No-data container rendered with listitem-like semantics but not inside proper list/listbox/tree parent	Likely real	High	Ensure no-data markup uses role-consistent container hierarchy; avoid orphan listitem semantics	No node with role listitem/option/treeitem is outside expected parent role

Tree extends UI5Element

Exposes the noDataText property/API
Delegates rendering to TreeList component
TreeList extends List

Only overrides item flattening logic (getItems())
Reuses List's entire template and rendering
List component

Has the actual template that renders the no-data row
TreeList inherits this template without modification

[ui5-webcomponents-bot]

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