In translations only one number form is used if the language is not in ICU

[Socialdarwinist]

For instance from data/languages/la.json

	{
		"key": "{int:NumBombs} bombs left",
		"one": "Bomba una reliqua",
		"other": "{int:NumBombs} bombae reliquae",
	},

only bombae reliquae is used, even if there is only one bomb left.

It should also be fixed for cases when JSON files contain other plurals than the ICU database.