Some time ago, we introduced the `cookAsync` instead of the existing
`cook` function, and planned to migrate everything to it. Then after
migrating, we wanted to raname the function to simply `cook`.
I've checked Core and plugins, and currently we call `cookAsync` everywhere,
there are no calls to the `cook` function anymore. So we're good
to proceed with this refactoring.
This PR makes the first step by making current cookAsync and cook functions
do the same thing. Effectively now the `cook` function becomes an alias
for the `cookAsync` function.
See https://github.com/discourse/discourse-encrypt/pull/282
> `cooked` was an Ember SafeString. The internal storage of the string changed from `.string` to `.__string` at some point between Ember 3.28 and Ember 5. Instead, we can use `toString()` which is guaranteed to work in all situations
Most of the core plugins were already hidden, this hides
chat, styleguide, and checklist to avoid potential confusion
for end users.
Also removes respond_to? :hide_plugin, since that API has been
in place for a while now.
