Add Estonian (credit: @indasin)

core/language/fr.json

@@ -2,24 +2,25 @@
 	"selectmenu": {
 		"selectlanguage": "Choisir la langue",
 		"languageflag": "fr",
-		"english": "Anglais",
 		"chinese1": "Chinois (Simplifié)",
 		"chinese2": "Chinois (Traditionnel)",
-		"german": "Allemand",
-		"french": "Français",
-		"polish": "Polonais",
-		"spanish": "Espagnol",
-		"hindi": "Hindi",
 		"croatian": "Croate",
-		"portuguese": "Portugais",
+		"english": "Anglais",
+		"estonian": "Estonien",
+		"french": "Français",
+		"german": "Allemand",
+		"hindi": "Hindi",
 		"hungarian": "Hongrois",
-		"serbian": "Serbe",
 		"italian": "Italien",
-		"russian": "Russe",
-		"norwegian": "Norvégien",
-		"romanian": "Roumain",
+		"japanese": "Japonais",
 		"korean": "Coréen",
-		"japanese": "Japonais"
+		"norwegian": "Norvégien",
+		"polish": "Polonais",
+		"portuguese": "Portugais",
+		"romanian": "Roumain",
+		"russian": "Russe",
+		"serbian": "Serbe",
+		"spanish": "Espagnol"
 	},
 	"sidemenu": {
 		"minting": "MONNAIE",