[ImgBot] Optimize images

*Total -- 1,865.86kb -> 1,734.69kb (7.03%)

/media/logo.png -- 67.37kb -> 29.96kb (55.54%)
/media/logos.png -- 45.05kb -> 30.07kb (33.26%)
/media/fabicon.png -- 13.08kb -> 8.86kb (32.27%)
/media/phone.png -- 83.41kb -> 59.32kb (28.88%)
/media/main1s.png -- 207.62kb -> 200.05kb (3.65%)
/media/back.png -- 1,449.32kb -> 1,406.45kb (2.96%)

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

Author: ImgBotApp