TreeGrid documentation for getDataProvider() points to Grid.getListDataView() and Grid.getLazyDataView() for more "information and control over the items in the grid" while these are unsupported. #19376

Description of the bug

This is a documentation problem merely.

Expected behavior

Explain whet getDataProvider() is good for and don't point to deprecated methods that are even documented as "not supported".

Minimal reproducible example

Read https://vaadin.com/api/platform/current/com/vaadin/flow/component/treegrid/TreeGrid.html

Versions

• Vaadin / Flow version: 24.3.11
• Java version: n/a
• OS version: n/a
• Browser version (if applicable): n/a
• Application Server (if applicable): n/a
• IDE (if applicable): n/a