Update the max alias length & url shortener response body

[Zingzy]

• We recently updated the API to return a more detailed response for shortened URLs

Before:

{
	"short_url": "https://spoo.me/abc"
}

Now:

{
	"short_url": "https://spoo.me/abc",
	"domain": "spoo.me",
	"original_url": "https://example.com"
}

• Also the maximum length of the alias has been increased from 12 chars to 16 chars