[ImgBot] Optimize images

*Total -- 205.57kb -> 175.69kb (14.53%)

/Audio_Steganography/Images/Before.jpg -- 68.27kb -> 56.25kb (17.6%)
/Pygame-Buttons/retry_button.png -- 0.95kb -> 0.81kb (14.99%)
/Text_Sentimental_Analysis_Script_with_GUI/images/search.png -- 2.49kb -> 2.11kb (14.96%)
/Audio_Steganography/Images/After.jpg -- 133.86kb -> 116.52kb (12.96%)

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

Author: ImgBotApp