[ImgBot] Optimize images

[imgbot[bot]]

Beep boop. Your images are optimized!

Your image file size has been reduced by 5% 🎉

Details

File	Before	After	Percent reduction
/app/src/main/res/mipmap-xxhdpi/ic_launcher.png	7.54kb	7.04kb	6.66%
/app/src/main/res/mipmap-xhdpi/ic_launcher.png	4.73kb	4.46kb	5.76%
/app/src/main/res/mipmap-hdpi/ic_launcher.png	3.34kb	3.24kb	2.90%
/app/src/main/res/mipmap-mdpi/ic_launcher.png	2.15kb	2.10kb	2.40%
Total :	17.76kb	16.83kb	5.20%

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