[ImgBot] Optimize images

*Total -- 106.90kb -> 84.54kb (20.91%)

/resources/Screenshot_2.png -- 63.12kb -> 49.64kb (21.35%)
/resources/Screenshot_1.png -- 43.77kb -> 34.90kb (20.27%)

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

Author: ImgBotApp