Small refactor and isort+black formatting

src/pyrmv/enums/lang.py

@@ -1,24 +1,44 @@
 from enum import auto
+
 from .auto_name import AutoName
 
+
 class Language(AutoName):
     """Enumeration used to declare locales as ISO-3166 codes (but only available in HAFAS ones)."""
 
-    DE = auto()
-    "German"
+    AR = auto()
+    "Arabic"
+
+    CA = auto()
+    "Catalan, Valencian"
 
     DA = auto()
     "Danish"
 
+    DE = auto()
+    "German"
+
+    EL = auto()
+    "Greek"
+
     EN = auto()
     "English"
 
     ES = auto()
     "Spanish"
 
+    FI = auto()
+    "Finnish"
+
     FR = auto()
     "French"
 
+    HI = auto()
+    "Hindi"
+
+    HR = auto()
+    "Croatian"
+
     HU = auto()
     "Hungarian"
 
@@ -34,8 +54,26 @@ class Language(AutoName):
     PL = auto()
     "Polish"
 
+    RU = auto()
+    "Russian"
+
+    SK = auto()
+    "Slovak"
+
+    SL = auto()
+    "Slovenian"
+
     SV = auto()
     "Swedish"
 
+    TL = auto()
+    "Tagalog"
+
     TR = auto()
-    "Turkish"
+    "Turkish"
+
+    UR = auto()
+    "Urdu"
+
+    ZH = auto()
+    "Chinese"