[ImgBot] Optimize images

*Total -- 5,943.05kb -> 5,274.14kb (11.26%)

/_posts/2023/2023-06-30-finding-symbols-in-your-c-projects-using-roslyn/cover.png -- 317.13kb -> 247.21kb (22.05%)
/_posts/2023/2023-07-18-im-writing-a-book/cover.png -- 286.75kb -> 223.82kb (21.94%)
/_posts/2023/2023-06-01-my-video-recording-live-streaming-setup/cover.png -- 293.91kb -> 229.84kb (21.8%)
/_posts/2023/2023-07-03-introducing-the-open-bin-folder-visual-studio-for-mac-extension/cover.png -- 296.39kb -> 234.30kb (20.95%)
/assets/images/banner.png -- 4,445.71kb -> 4,040.43kb (9.12%)
/assets/images/oss/VS4Mac-OpenBinFolder.png -- 303.16kb -> 298.53kb (1.53%)

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Author: ImgBotApp