Use the existing service that new tab uses and add grid view to all sections per the figma [spec](https://www.figma.com/file/wP9MY9KJn9xqPf140lTvTv/Fx-View-Specs-2023?type=design&node-id=4844-194746&mode=design&t=LAJKiYvVlAnMoszF-0). We might want to spin open tabs into its own bug if its a bit more complex to do.
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We can use the existing [BackgroundPageThumbs](https://searchfox.org/mozilla-central/source/toolkit/components/thumbnails/BackgroundPageThumbs.sys.mjs) service that new tab uses which is privacy preserving in that it takes screenshots only of pages that are visible to the public (so avoid producing a banking dashboard thumbnail that might expose sensitive info, but rather a banking page for someone not logged in) and add grid view to all sections per the figma [spec](https://www.figma.com/file/wP9MY9KJn9xqPf140lTvTv/Fx-View-Specs-2023?type=design&node-id=4844-194746&mode=design&t=LAJKiYvVlAnMoszF-0). We might want to spin open tabs into its own bug if its a bit more complex to do.