New Tab Page Bookmarks per mathio

- does NOT manage your bookmarks, use the built-in bookmarks manager for that (CMD+SHIFT+O / CTRL+SHIFT+O)
- does NOT sync your bookmarks, your browser already does that
- there are NO settings, deal with it
- just displays your bookmarks in multiple columns for quick access from the new tab page
- displays favicons for your bookmarks (via Google API)
- display small "show" / "hide" toggle in bottom right corner to hide all your bookmarks (for when you are sharing your screen or someone is looking over your shoulder)
- when you hide bookmarks a random photo from wallpaper topic on Unsplash is displayed once every 15 minutes