[ImgBot] Optimize images

*Total -- 582.78kb -> 537.06kb (7.85%)

/public/maskable-icon.png -- 310.60kb -> 284.04kb (8.55%)
/public/apple-touch-icon.png -- 272.18kb -> 253.02kb (7.04%)

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

Author: ImgBotApp