Add topics for TreeList ColumnButtonClickEvent Type/Members

[mpreyskurantov]

Patch for:

• Add topics for ColumnButtonClickEvent Type/Members #5506

Requires:

• TreeList - Column button does not accept ColumnButtonClickEvent as the onClick event type (T1319919) DevExtreme#32404

[Copilot]

Pull request overview

This PR adds syntax data and updates type references for the TreeList ColumnButtonClickEvent type and its members to support proper type generation and documentation across Angular, React, and Vue frameworks.

Changes:

• Added syntax data mappings for _ui_tree_list_ColumnButtonClickEvent and its column and row members in metadata/syntax-data.json
• Updated the parameter type from generic Object to the specific ui/tree_list:ColumnButtonClickEvent type in the onClick documentation
• Changed the component field type from dxTreeList to the placeholder {WidgetName} for consistency
• Removed the redundant model field declaration (inherited from NativeEventInfo)

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

File	Description
metadata/syntax-data.json	Adds framework-specific syntax mappings for ColumnButtonClickEvent type and its column/row members, matching the pattern used for DataGrid
api-reference/_hidden/dxTreeListColumnButton/onClick.md	Updates parameter type to use the typed ColumnButtonClickEvent reference, standardizes component field, and removes redundant model field