[ImgBot] Optimize images

*Total -- 1,962.71kb -> 1,912.33kb (2.57%)

/public/maskable-icon.png -- 310.60kb -> 284.04kb (8.55%)
/public/apple-touch-icon.png -- 272.18kb -> 253.02kb (7.04%)
/picimpact.png -- 1,352.88kb -> 1,348.24kb (0.34%)
/public/favicon.svg -- 27.05kb -> 27.04kb (0.03%)

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

Author: ImgBotApp