[ImgBot] Optimize images

*Total -- 1,231.49kb -> 1,133.67kb (7.94%)

/src/images/footer-logo.png -- 16.64kb -> 12.06kb (27.5%)
/src/images/assets/pwa/icon192.png -- 29.23kb -> 24.13kb (17.48%)
/src/images/assets/pwa/icon128.png -- 16.78kb -> 14.16kb (15.62%)
/src/images/assets/pwa/icon384.png -- 74.93kb -> 63.23kb (15.62%)
/src/images/assets/pwa/icon96.png -- 11.59kb -> 9.91kb (14.49%)
/src/images/assets/pwa/icon512.png -- 107.19kb -> 91.69kb (14.46%)
/src/images/assets/team/ppsquare.jpg -- 114.77kb -> 98.44kb (14.23%)
/src/images/assets/courses/best-prac.png -- 26.72kb -> 22.96kb (14.08%)
/src/images/assets/logo.png -- 5.67kb -> 4.92kb (13.27%)
/src/images/assets/courses/kotlin.png -- 24.29kb -> 21.25kb (12.53%)
/src/images/assets/courses/intro-js.png -- 22.29kb -> 19.93kb (10.58%)
/src/images/assets/error.jpg -- 57.66kb -> 51.99kb (9.83%)
/src/images/assets/diversity.png -- 261.28kb -> 241.98kb (7.39%)
/src/images/assets/team/rohitsir.jpeg -- 59.58kb -> 56.74kb (4.76%)
/src/images/vibranium.png -- 195.70kb -> 193.15kb (1.3%)
/src/images/assets/team/rohitsir.jpg -- 207.16kb -> 207.13kb (0.01%)

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

Author: ImgBotApp