[ImgBot] Optimize images

*Total -- 668.74kb -> 435.72kb (34.84%)

/app/src/main/res/drawable/delivered_stamp.png -- 55.40kb -> 11.44kb (79.35%)
/app/src/main/res/drawable-hdpi/delivered_stamp.png -- 55.40kb -> 11.44kb (79.35%)
/app/src/main/res/drawable-v24/delivered_stamp.png -- 55.40kb -> 11.44kb (79.35%)
/app/src/main/res/drawable-hdpi/blacktick.png -- 55.25kb -> 30.96kb (43.97%)
/app/src/main/res/drawable/blacktick.png -- 55.25kb -> 30.96kb (43.97%)
/app/src/main/res/drawable-v24/blacktick.png -- 55.25kb -> 30.96kb (43.97%)
/app/src/main/res/drawable-v24/greentick.png -- 24.20kb -> 17.84kb (26.26%)
/app/src/main/res/drawable-hdpi/greentick.png -- 24.20kb -> 17.84kb (26.26%)
/app/src/main/res/drawable/greentick.png -- 24.20kb -> 17.84kb (26.26%)
/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -- 10.40kb -> 9.54kb (8.33%)
/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -- 7.72kb -> 7.27kb (5.88%)
/app/src/main/res/drawable-hdpi/timer_stamp.png -- 47.02kb -> 45.11kb (4.05%)
/app/src/main/res/drawable-v24/timer_stamp.png -- 47.02kb -> 45.11kb (4.05%)
/app/src/main/res/drawable/timer_stamp.png -- 47.02kb -> 45.11kb (4.05%)
/app/src/main/res/mipmap-hdpi/ic_launcher.png -- 3.51kb -> 3.43kb (2.14%)
/app/src/main/res/mipmap-xhdpi/ic_launcher.png -- 4.81kb -> 4.71kb (2.07%)
/app/src/main/res/drawable-v24/online.png -- 32.23kb -> 31.57kb (2.04%)
/app/src/main/res/drawable-hdpi/online.png -- 32.23kb -> 31.57kb (2.04%)
/app/src/main/res/drawable/online.png -- 32.23kb -> 31.57kb (2.04%)

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

Author: ImgBotApp