Update app.py

app.py

@@ -287,7 +287,7 @@ def transliterate_arabic_to_latin(text):
 def transliterate(text, direction):
     """Main transliteration function"""
     if direction == "Latin → Arabic":
-        return transliterate_latin_to_arabic(text)
+        return transliterate_latin_to_arabic(text.lower())
     else:
         return transliterate_arabic_to_latin(text)