[ImgBot] Optimize images

*Total -- 426.36kb -> 294.32kb (30.97%)

/site/assets/images/addons/project-notes-tabs.png -- 6.22kb -> 2.15kb (65.47%)
/site/assets/images/addons/project-info.png -- 7.58kb -> 2.64kb (65.24%)
/site/assets/images/addons/youtube-fullscreen.png -- 9.42kb -> 3.51kb (62.76%)
/site/assets/images/addons/forum-quote-code-beautifier.png -- 10.63kb -> 5.92kb (44.3%)
/site/assets/images/addons/better-featured-project.png -- 141.80kb -> 84.97kb (40.08%)
/site/assets/images/addons/block-switching.png -- 10.95kb -> 6.85kb (37.42%)
/site/assets/images/addons/editor-messages.png -- 10.85kb -> 7.07kb (34.85%)
/site/assets/images/addons/curator-link.png -- 76.68kb -> 55.65kb (27.43%)
/site/assets/images/addons/dark-www.png -- 28.79kb -> 21.55kb (25.15%)
/site/assets/images/addons/my-ocular.png -- 13.99kb -> 10.92kb (21.9%)
/site/assets/images/addons/confirm-actions.png -- 52.43kb -> 43.38kb (17.25%)
/site/assets/images/addons/onion-skinning.png -- 51.85kb -> 45.15kb (12.91%)
/site/assets/images/addons/progress-bar.png -- 5.15kb -> 4.55kb (11.66%)

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

Author: ImgBotApp