Use singular resource name for error explanation

[efatsi]

Just a little thing I noticed.

Was:

Now:

---

Not sure if this is too much of a bandaid approach here. Was imagining potentially passing in the count option to display_resource_name from the error partial view code, but if you haven't defined a translation, then the default string that's constructed is what ends up being returned. Given that the default comes from default_resource_name (which pluralizes the model name), the count is often ignored for the plural version.

Thoughts on if this is good enough or if a larger refactor around how display_resource_name is used is called for?

[pablobm]

There has been talk of a larger refactor, but it may still take a while. Perhaps for now this band-aid is ok. @nickcharlton, do you have any thoughts?

[nickcharlton]

Yeah — I think this is fine for now and ensures it reads properly. Thanks!