[ImgBot] Optimize images

*Total -- 1,553.59kb -> 1,173.44kb (24.47%)

/Caesar-Cipher/output.png -- 67.23kb -> 34.93kb (48.05%)
/Music-Player-App/assests/screenshot/Screenshot.png -- 185.83kb -> 133.07kb (28.39%)
/Cartooning Image/cartoon.png -- 1,297.13kb -> 1,002.27kb (22.73%)
/Music-Player-App/assests/images/play.png -- 0.92kb -> 0.76kb (17.8%)
/Music-Player-App/assests/images/pause.png -- 0.93kb -> 0.90kb (3.45%)
/Music-Player-App/assests/images/stop.png -- 0.88kb -> 0.85kb (3.32%)
/Music-Player-App/assests/images/001-volume.png -- 0.67kb -> 0.66kb (0.44%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp