[ImgBot] Optimize images

*Total -- 57.10kb -> 40.16kb (29.66%)

/erxeslibrary/src/main/res/drawable/pattern.png -- 29.52kb -> 15.34kb (48.03%)
/erxeslibrary/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png -- 1.10kb -> 0.87kb (20.73%)
/erxeslibrary/src/main/ic_launcher-web.png -- 15.75kb -> 13.44kb (14.66%)
/erxeslibrary/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png -- 0.73kb -> 0.67kb (8.7%)
/erxeslibrary/src/main/res/drawable-xxhdpi/twitterlogo.png -- 0.96kb -> 0.95kb (1.52%)
/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -- 9.03kb -> 8.90kb (1.51%)

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

Author: ImgBotApp