fixed error in detect_lang for newline character in sequence entered

app.py

@@ -102,6 +102,8 @@ def prep_examples():
 def detect_lang(sequence, labels):
     DetectorFactory.seed = 0
     seq_lang = 'en'
+    
+    sequence = sequence.replace('\n', ' ')
 
     try:
         #seq_lang = detect(sequence)