Function handle_ui_browser_focus_element 

pub(crate) async fn handle_ui_browser_focus_element(
    __arg0: State<AppState>,
    caller: Option<Extension<Caller>>,
    __arg2: Json<UiBrowserFocusElementRequest>,
) -> impl IntoResponse

POST /api/v1/ui/browser/focus_element — backs BrowserFocusElement.