[ImgBot] Optimize images

*Total -- 616.35kb -> 584.41kb (5.18%)

/public/logo.svg -- 1.36kb -> 1.14kb (16.12%)
/public/hero image.png -- 101.18kb -> 91.47kb (9.6%)
/public/docs/eternalcore/butcher.gif -- 513.81kb -> 491.80kb (4.28%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp