need a Mustache helper method for html entities

The quote helper method is not always useful in some cases. The #quote helper is used when we want to avoid the situations where double quotes can break the JSON syntax. So in order to escape the double quotes we use the #quote helper. But that's only useful in JSON or Javascript. The reason is that the #quote helper escapes double quotes with a backslash. Whereas in HTML, we don't escape with a backslash. we need to replace double quotes with its HTML entity instead.

Then we can use the new helper when we are working with attributes such as aria-label