[ImgBot] Optimize images

*Total -- 1,557.47kb -> 1,435.60kb (7.82%)

/public/logo.svg -- 1.36kb -> 1.14kb (16.12%)
/public/hero image.png -- 101.18kb -> 91.47kb (9.6%)
/public/docs/eternalcore/adminchat.gif -- 941.12kb -> 851.19kb (9.56%)
/public/docs/eternalcore/butcher.gif -- 513.81kb -> 491.80kb (4.28%)

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

Author: ImgBotApp