[ImgBot] Optimize images

*Total -- 524.18kb -> 432.11kb (17.56%)

/Promotional/4.jpg -- 89.98kb -> 72.49kb (19.44%)
/Promotional/2.jpg -- 107.62kb -> 87.66kb (18.55%)
/Promotional/1.jpg -- 157.50kb -> 130.94kb (16.87%)
/Promotional/3.jpg -- 169.08kb -> 141.02kb (16.59%)

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

Author: ImgBotApp