pub fn SearchBarInputField(
placeholder: String,
query: String,
on_query_change: Rc<dyn Fn(String)>,
expanded: bool,
config: SearchBarInputFieldConfig,
) -> ViewExpand description
Build a search bar input field with proper M3 SearchBar styling.
Equivalent to Compose Material3’s SearchBarDefaults.InputField.
When state is provided, focus gain triggers expand and Escape triggers collapse.
Always renders a UiTextField (focusable even in collapsed state, matching CK).