Update app.py

app.py

@@ -464,7 +464,7 @@ def translate_text(input_text: str, s_language: str, t_language: str, model_name
     sl = all_langs[s_language][0]
     tl = all_langs[t_language][0]
     message_text = f'Translated from {s_language} to {t_language} with {model_name}'
-    if not input_text or input_text == '':
+    if not input_text or input_text.strip() == '':
         translated_text = f'No input text entered!'
         message_text = 'Please enter a text to translate!'
         return translated_text, message_text