"Sort by emoji" fails when one or more items has a non-string emoji

[ToMyFriends]

The userscript barfs on the line emojiA.localeCompare(emojiB) when emojiA is a non-string type. This happened to me because I have an item called "The Answer" which is represented in the save data as follows:

{
	"text": "The Answer",
	"emoji": 42,
	"discovered": false
}