[ImgBot] Optimize images

[ImgBot] Optimize images

*Total -- 1,838.08kb -> 1,439.34kb (21.69%)

/images/screenshots/friendica-2023-12-frio-desktop.png -- 1,011.26kb -> 706.65kb (30.12%)
/images/screenshots/friendica-2023-10-frio-mobile-options-dark-blue.png -- 184.63kb -> 149.93kb (18.8%)
/images/screenshots/friendica-2023-10-frio-mobile-options-light-blue.png -- 166.19kb -> 138.00kb (16.96%)
/images/screenshots/friendica-2023-10-frio-mobile-timeline-dark-blue.png -- 400.47kb -> 370.62kb (7.45%)
/images/bluesky.jpg -- 7.75kb -> 7.55kb (2.58%)
/view/js/vanillaEmojiPicker/screenshot.png -- 67.77kb -> 66.58kb (1.76%)

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