__ or i18n not available in handlebar

**Node version**: v18.0.0
**Sails version** _(sails)_: 1.4.0
**ORM hook version** _(sails-hook-orm)_:
**Sockets hook version** _(sails-hook-sockets)_:
**Organics hook version** _(sails-hook-organics)_:
**Grunt hook version** _(sails-hook-grunt)_:
**Uploads hook version** _(sails-hook-uploads)_:
**DB adapter & version** _(e.g. sails-mysql@5.55.5)_:
**Skipper adapter & version** _(e.g. skipper-s3@5.55.5)_:

i am trying to add [i18n](https://sailsjs.com/documentation/concepts/internationalization#internationalization) in a sails app
in the sails js docs the given examples are using `i18n() or __()` inside a ejs file
but in the current project we are using handlebars and when trying to use `__()` its throwing error

```log
{"level":"error","log":{"error":{"message":"Missing helper: \"__\"","name":"Error","stack":"Error: Missing helper: \"__\"\n at Object. (node_modules/handlebars/dist/cjs/handlebars/helpers/helper-missing.js:19:13)
```

my `/config/i18n.js` looks like this:
```javascript
module.exports.i18n = {
locales: ['en', 'ur'],
defaultLocale: 'en',
localesDirectory: 'config/locales'
};
```

my `config/locales/en.json` file looks like this:
```json
{
"signup": "Create Account"
}
```

and this how i am using it in my `signup.hbs`
```html

{{{__ "signup"}}}

Start with config/i18n.js, config/locales/en.json, and signup.hbs, then reproduce the Missing helper: "__" error using the reported Node and Sails versions. Trace how the Handlebars view is rendered and how i18n is exposed; done means the signup translation renders in the template or the supported usage is clearly documented.

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