[ImgBot] Optimize images

*Total -- 82.15kb -> 49.87kb (39.29%)

/public/logo.png -- 34.61kb -> 16.39kb (52.65%)
/SHORTEN.png -- 44.93kb -> 30.91kb (31.21%)
/src/logo.svg -- 2.61kb -> 2.57kb (1.46%)

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

Author: ImgBotApp