[ImgBot] Optimize images

*Total -- 71.63kb -> 49.78kb (30.5%)

/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png -- 14.45kb -> 9.69kb (32.93%)
/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png -- 45.89kb -> 31.58kb (31.18%)
/web/favicon.png -- 0.90kb -> 0.64kb (29.01%)
/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png -- 1.40kb -> 1.00kb (28.62%)
/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png -- 5.79kb -> 4.27kb (26.23%)
/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png -- 3.20kb -> 2.60kb (18.77%)

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

Author: ImgBotApp