Browser Visibility Guidance

Creating an IAB tab automatically opens and activates the right browser pane so the user can see browser use in progress.
Keep the pane visible during normal browser work unless the task explicitly calls for hiding it.
Use visibility controls to hide the pane or show it again; callers do not need to call set(true) after tabs.new().
Show or hide it with await (await browser.capabilities.get("visibility")).set(true | false); read the current state with get().