[ImgBot] Optimize images

*Total -- 2,327.20kb -> 1,669.29kb (28.27%)

/static/cider.png -- 4.30kb -> 1.76kb (58.99%)
/site/docs/.vuepress/public/images/qr-jd-2019.png -- 6.88kb -> 3.04kb (55.87%)
/web-ui/arthasWebConsole/public/tt.png -- 122.69kb -> 56.09kb (54.28%)
/web-ui/arthasWebConsole/public/thread.png -- 40.99kb -> 19.64kb (52.09%)
/web-ui/arthasWebConsole/public/option.png -- 76.90kb -> 38.11kb (50.44%)
/static/zhaopin.png -- 5.66kb -> 3.14kb (44.56%)
/site/docs/.vuepress/public/images/arthas-tunnel-server.png -- 149.92kb -> 87.85kb (41.4%)
/site/docs/.vuepress/public/images/trace.png -- 121.01kb -> 71.78kb (40.68%)
/web-ui/arthasWebConsole/all/share/assert/arthas.png -- 16.38kb -> 10.89kb (33.5%)
/site/docs/.vuepress/public/images/arthas.png -- 16.38kb -> 10.89kb (33.5%)
/site/docs/.vuepress/public/images/arthas-web-ui.png -- 244.11kb -> 169.24kb (30.67%)
/site/docs/.vuepress/public/images/tunnel-server-agents.png -- 39.71kb -> 27.61kb (30.46%)
/site/docs/.vuepress/public/images/tunnel-server-apps.png -- 27.32kb -> 19.13kb (29.97%)
/site/docs/.vuepress/public/images/qrcode_gongzhonghao.jpg -- 39.13kb -> 27.87kb (28.77%)
/tutorials/katacoda/common-resources/assets/qrcode_gongzhonghao.jpg -- 39.13kb -> 27.87kb (28.77%)
/site/docs/.vuepress/public/images/dashboard.png -- 790.90kb -> 584.45kb (26.1%)
/static/ctrip.png -- 2.28kb -> 1.71kb (25.03%)
/site/docs/.vuepress/public/images/web-console-local.png -- 48.90kb -> 39.28kb (19.66%)
/tutorials/katacoda/common-resources/assets/web-console.png -- 48.90kb -> 39.28kb (19.66%)
/site/docs/.vuepress/public/images/users/users_telecom.png -- 18.32kb -> 14.95kb (18.41%)
/tutorials/katacoda/common-resources/assets/arthas-boot.png -- 37.93kb -> 31.05kb (18.14%)
/static/dmall.jpg -- 1.88kb -> 1.54kb (18.05%)
/site/docs/.vuepress/public/images/logo.png -- 6.18kb -> 5.14kb (16.89%)
/web-ui/arthasWebConsole/public/dashboard.png -- 63.27kb -> 52.79kb (16.57%)
/static/bbdservice.png -- 0.66kb -> 0.55kb (16.54%)
/site/docs/.vuepress/public/images/qqgroup2_qr.jpg -- 87.68kb -> 73.61kb (16.05%)
/site/docs/.vuepress/public/images/users/users_kaola.png -- 8.20kb -> 6.93kb (15.4%)
/site/docs/.vuepress/public/images/qqgroup_qr.jpg -- 56.43kb -> 48.00kb (14.93%)
/site/docs/.vuepress/public/images/users/users_alibaba.png -- 9.51kb -> 8.54kb (10.28%)
/site/docs/.vuepress/public/images/dingding3_qr.jpg -- 27.63kb -> 25.63kb (7.23%)
/site/docs/.vuepress/public/images/dingding2_qr.jpg -- 27.87kb -> 25.90kb (7.06%)
/site/docs/.vuepress/public/images/dingding_qr.jpg -- 28.01kb -> 26.05kb (7.02%)
/site/docs/.vuepress/public/images/users/users_qunar.png -- 9.74kb -> 9.13kb (6.22%)
/site/docs/.vuepress/public/images/users/users_weidian.png -- 7.22kb -> 6.86kb (4.95%)
/static/citycloud.jpg -- 2.13kb -> 2.03kb (4.64%)
/static/idengyun.jpg -- 1.65kb -> 1.58kb (4.38%)
/tutorials/katacoda/common-resources/assets/demo-web.png -- 24.02kb -> 23.28kb (3.07%)
/static/didiglobal.jpg -- 3.61kb -> 3.50kb (2.9%)
/static/zhuanzhuan.jpg -- 2.76kb -> 2.69kb (2.79%)
/site/docs/.vuepress/public/images/users/users_didi.png -- 12.16kb -> 11.89kb (2.23%)
/site/docs/.vuepress/public/images/arthas-output-recording.png -- 19.79kb -> 19.37kb (2.12%)
/site/docs/.vuepress/public/images/dingding_group_search.png -- 21.40kb -> 21.03kb (1.71%)
/static/evercreative.jpg -- 2.40kb -> 2.38kb (0.98%)
/static/secoo.jpg -- 2.35kb -> 2.33kb (0.91%)
/static/gzvtc.jpg -- 2.93kb -> 2.91kb (0.7%)

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