[ImgBot] Optimize images

*Total -- 151.50kb -> 132.00kb (12.87%)

/FrontendMentor25—interactive-rating-component/Screen Shot.png -- 65.44kb -> 52.61kb (19.6%)
/FrontendMentor24—faq-accordion/Screen Shot.png -- 85.70kb -> 79.04kb (7.76%)
/FrontendMentor24—faq-accordion/images/icon-plus.svg -- 0.36kb -> 0.34kb (4.38%)

Signed-off-by: ImgBotApp <[email protected]>

Author: ImgBotApp