[zh] Add 5 more feature gates

[windsonsea]

Add 5 new more feature gates:

content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/component-flagz.md
content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/component-statusz.md
content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/pod-level-resources.md
content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/scheduler-async-preemption.md
content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/watch-list-client.md

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