Editorial: Constant references to "types" as a variable are confusing

[domenic]

In e.g. https://privacycg.github.io/saa-non-cookie-storage/#dom-document-requeststorageaccess, there is reference to a types variable. However, types is not declared, so this is undefined.

I believe instead this should be something like [=this=]'s [=StorageAccessHandle/types=].