[ImgBot] Optimize images

*Total -- 2,141.11kb -> 1,632.73kb (23.74%)

/steel_mountain/unauth-page.png -- 24.69kb -> 11.46kb (53.58%)
/alfred/port-8080-login.png -- 37.66kb -> 20.30kb (46.11%)
/windows-10-privesc-tib3rius/adminpaint-process.png -- 17.07kb -> 9.90kb (42.02%)
/steel_mountain/port-8080-page.png -- 45.92kb -> 27.00kb (41.21%)
/alfred/port-80-page.png -- 144.71kb -> 100.67kb (30.43%)
/steel_mountain/hfs-page.png -- 105.89kb -> 77.70kb (26.62%)
/Blue/blue-room-top.png -- 1,042.13kb -> 783.46kb (24.82%)
/alfred/initial-access-2.png -- 91.62kb -> 71.07kb (22.43%)
/alfred/initial-access-1.png -- 136.75kb -> 107.39kb (21.47%)
/Blue/eblue-search.png -- 196.76kb -> 158.12kb (19.64%)
/alfred/burp-intruder.png -- 93.44kb -> 80.60kb (13.74%)
/alfred/dashboard.png -- 77.84kb -> 68.39kb (12.14%)
/alfred/sniper-attack.png -- 41.49kb -> 37.18kb (10.39%)
/windows-10-privesc-tib3rius/revshell-upload.png -- 47.92kb -> 44.25kb (7.64%)
/windows-10-privesc-tib3rius/the-beginning.png -- 37.23kb -> 35.24kb (5.33%)

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