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Exception （First Commit）

doc: update readme, add dev doc

ts config

[ImgBot] Optimize images

*Total -- 2,224.58kb -> 1,641.48kb (26.21%)

/AccountSettings/snapshot.png -- 87.20kb -> 48.55kb (44.33%)
/AccountCenter/snapshot.png -- 86.19kb -> 50.62kb (41.27%)
/Exception404/snapshot.png -- 50.74kb -> 29.85kb (41.18%)
/Exception500/snapshot.png -- 48.75kb -> 30.39kb (37.67%)
/UserLogin/snapshot.png -- 25.98kb -> 16.82kb (35.26%)
/UserRegister/snapshot.png -- 23.94kb -> 15.72kb (34.34%)
/UserRegisterResult/snapshot.png -- 33.80kb -> 22.21kb (34.3%)
/ResultFail/snapshot.png -- 40.75kb -> 26.84kb (34.15%)
/StepForm/snapshot.png -- 70.12kb -> 47.86kb (31.75%)
/Exception403/snapshot.png -- 56.09kb -> 38.73kb (30.95%)
/Monitor/snapshot.png -- 237.90kb -> 168.77kb (29.06%)
/Analysis/snapshot.png -- 84.18kb -> 59.95kb (28.79%)
/ResultSuccess/snapshot.png -- 62.37kb -> 44.58kb (28.51%)
/BasicList/snapshot.png -- 113.58kb -> 83.28kb (26.68%)
/CardList/snapshot.png -- 113.58kb -> 83.28kb (26.68%)
/SearchListApplications/snapshot.png -- 70.34kb -> 52.24kb (25.73%)
/TableList/snapshot.png -- 132.91kb -> 99.50kb (25.13%)
/AdvancedProfile/snapshot.png -- 97.50kb -> 73.79kb (24.31%)
/SearchListProjects/snapshot.png -- 319.05kb -> 252.36kb (20.9%)
/SearchListArticles/snapshot.png -- 107.43kb -> 85.80kb (20.14%)
/BasicForm/snapshot.png -- 58.31kb -> 46.67kb (19.97%)
/AdvancedForm/snapshot.png -- 67.10kb -> 54.64kb (18.57%)
/BasicProfile/snapshot.png -- 82.15kb -> 72.44kb (11.81%)
/Workplace/snapshot.png -- 154.63kb -> 136.62kb (11.65%)

The attribute `skeletonProps` in NoticeIcon tab has default value of `{}` so it doesn't necessary have to be required as stated in typings. This PR fixes it be optional.