[ImgBot] Optimize images

*Total -- 10,814.92kb -> 9,437.65kb (12.73%)

/img/fxpDZqn.png -- 2,245.17kb -> 1,911.30kb (14.87%)
/img/3auQeDt.png -- 2,120.85kb -> 1,811.53kb (14.58%)
/img/PCGwS6R.png -- 2,148.38kb -> 1,839.29kb (14.39%)
/img/image.png -- 66.40kb -> 58.29kb (12.21%)
/img/zPQ2V04.png -- 2,965.19kb -> 2,650.42kb (10.62%)
/img/MoarKerbals800x800.png -- 697.57kb -> 628.12kb (9.96%)
/img/HeroLogo_1920x1920.jpg -- 561.49kb -> 529.31kb (5.73%)
/img/strideknight_flag.jpg -- 9.88kb -> 9.38kb (5.07%)

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

Author: ImgBotApp