fix ssr warning

[ichn-hu]

close #4

reference https://zhuanlan.zhihu.com/p/348701319

[ichn-hu]

@djyde PTAL~

[AmagiDDmxh]

我觉得可以考虑把 SSR 相关的都写到一个地方，像 layoutEffect / effect 常见的就是 useIsoMorphicEffect

参考：https://github.com/tailwindlabs/headlessui/blob/main/packages/%40headlessui-react/src/hooks/use-iso-morphic-effect.ts

定义一个 constant isServer 然后复用，如 https://github.com/benawad/dogehouse/blob/staging/kibbeh/src/lib/isServer.ts

Chakra 的解决方案：https://github.com/chakra-ui/chakra-ui/blob/main/packages/utils/src/dom.ts#L35-L43

[djyde]

Would it cause "window is not defined" when rendering in server side?

[AmagiDDmxh]

well, try typeof undefined === 'undefined' or typeof undefinedVarable is pretty fine in JS, everything starts with undefined

[jukrb0x]

why not just use hybrid rendering approach, make the cusdis to be rendered in the web browser instead of ssr.