[Request]: document watching a whole store/mutable

What is this request related to?

Request

📋 Suggested

Need some docs on how to watch a whole store (all keys).

📋 General description or bullet points

It's not obvious how to do this. See this Google search result example:

The first result links to the Stores page where it could be documented:

https://docs.solidjs.com/concepts/stores

A better API would be nice, one that is an officially documented function:

• https://github.com/solidjs/solid/discussions/1077

🖥️ Reproduction of code samples in StackBlitz

No response

从 docs.solidjs.com/concepts/stores 的 Stores 页面开始，并查看链接的 Solid 讨论 1077。确定当前支持的监听 store 或 mutable 中所有键的方式，然后在 Stores 页面记录这种用法；完成的标准是新手能够找到并遵循该指南。