[ImgBot] Optimize images

*Total -- 20,982.66kb -> 13,171.80kb (37.23%)

/assets/splash.png -- 10,724.25kb -> 6,458.60kb (39.78%)
/assets/icon-only.png -- 1,987.71kb -> 1,283.68kb (35.42%)
/assets/logo.png -- 1,987.71kb -> 1,283.68kb (35.42%)
/assets/icon-background.png -- 1,987.71kb -> 1,283.68kb (35.42%)
/assets/icon-foreground.png -- 1,987.71kb -> 1,283.68kb (35.42%)
/www/res/logo.png -- 1,987.71kb -> 1,283.68kb (35.42%)
/android/app/src/main/res/drawable/splash.png -- 102.45kb -> 86.50kb (15.56%)
/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -- 28.68kb -> 26.87kb (6.32%)
/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -- 31.86kb -> 30.19kb (5.24%)
/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_background.png -- 33.12kb -> 31.39kb (5.22%)
/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png -- 33.12kb -> 31.39kb (5.22%)
/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png -- 18.29kb -> 17.71kb (3.14%)
/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -- 19.75kb -> 19.14kb (3.08%)
/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_background.png -- 21.12kb -> 20.67kb (2.14%)
/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png -- 21.12kb -> 20.67kb (2.14%)
/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png -- 10.33kb -> 10.26kb (0.65%)

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

Author: ImgBotApp