[ImgBot] Optimize images (#749)

*Total -- 148.84kb -> 148.66kb (0.13%)

/form-nerd-logo.png -- 4.66kb -> 4.52kb (3.04%)
/docs/logo.svg -- 144.18kb -> 144.13kb (0.03%)

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

Co-authored-by: Imgbot <[email protected]>

Author: imgbot[bot]