Option to not announcing page data when browser is not active

Currently, the active tab is shown in the timeline even if I'm not looking at it.

Browser app is open 24/7 for me, with many open tabs.
The data occupying most space in the timeline is the tab where I left the browser last time before switching to other apps. This is pretty misleading.

`aw-watcher-obsidian` seems smarter about this. Its timeline shows data blocks with more relevance to when I was using it.
`aw-watcher-web-edge` can contain short gaps (under a minute) here and there, but those don't change the overall picture.