[ImgBot] Optimize images

*Total -- 974.99kb -> 959.89kb (1.55%)

/images/typing-on-laptop-closeup.jpg -- 86.74kb -> 84.07kb (3.08%)
/images/welcome/custom-page-headers.png -- 432.86kb -> 421.63kb (2.6%)
/images/city-view-night.jpg -- 116.12kb -> 114.95kb (1.01%)
/images/crio-logo.svg -- 6.96kb -> 6.96kb (0.01%)
/images/building-perspective.jpg -- 332.31kb -> 332.29kb (0.01%)

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

Author: ImgBotApp