[ImgBot] Optimize images

*Total -- 967.38kb -> 951.32kb (1.66%)

/site/.vuepress/public/img/gci/1-cheat-files.jpg -- 16.78kb -> 14.66kb (12.64%)
/site/.vuepress/public/img/gci/0-gcmm-files.jpg -- 12.54kb -> 11.26kb (10.22%)
/site/.vuepress/public/img/gci/2-0-open-gcmm.png -- 137.26kb -> 134.51kb (2.01%)
/site/.vuepress/public/img/gci/2-1-choose-device.png -- 41.61kb -> 40.82kb (1.91%)
/site/.vuepress/public/img/gci/2-6-overwrite-1.png -- 114.89kb -> 113.37kb (1.33%)
/site/.vuepress/public/img/gci/2-6-overwrite-2.png -- 113.51kb -> 112.06kb (1.28%)
/site/.vuepress/public/img/gci/2-3-choose-slot.png -- 156.12kb -> 154.16kb (1.26%)
/site/.vuepress/public/img/gci/2-5-complete.png -- 109.72kb -> 108.41kb (1.19%)
/site/.vuepress/public/img/gci/2-2-choose-mode.png -- 151.95kb -> 150.25kb (1.12%)
/site/.vuepress/public/img/gci/2-4-choose-file.png -- 112.99kb -> 111.82kb (1.03%)

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