Create a method that takes a string and returns a string with its letters in alphabetical order.
AlphabetSoup("hello") ➞ "ehllo"
AlphabetSoup("edabit") ➞ "abdeit"
AlphabetSoup("hacker") ➞ "acehkr"
AlphabetSoup("geek") ➞ "eegk"
AlphabetSoup("javascript") ➞ "aacijprstv"You can assume numbers and punctuation symbols won't be included in test cases. You'll only have to deal with single word, alphabetic characters.