[bazel.build] Problem with /concepts/platforms

### Page link:

https://bazel.build/concepts/platforms

### Problem description (include actual vs expected text, if applicable):

This page says

```
Apple
[Apple rules](https://github.com/bazelbuild/rules_apple) do not support platforms and are not yet scheduled for support.

You can still use platform APIs with Apple builds (for example, when building with a mixture of Apple rules and pure C++) with [platform mappings](https://bazel.build/concepts/platforms#platform-mappings).
```

I'm not close to the details, but this might not be true anymore:

https://github.com/bazelbuild/rules_apple/issues/1658

### Where do you see this issue? (include link to specific section of the page, if applicable)

https://bazel.build/concepts/platforms#apple

### Any other information you'd like to share?

_No response_

Start at the Apple section of https://bazel.build/concepts/platforms and compare its statement with the status discussed in rules_apple issue 1658. Confirm whether the paragraph is still accurate; done means updating the page text if it is outdated, while preserving the platform-mappings context when applicable.

Written by the indexing model from the issue text.