fix bugs

app.py

@@ -12,7 +12,7 @@ with open("formatted_travel_tips.txt", "r", encoding="utf-8") as file:
 # STEP 3 FROM SEMANTIC SEARCH
 def preprocess_text(text): # Clean raw text and split it into non-empty chunks
     cleaned_text = text.strip()
-    chunks = cleaned_text.split("\n")
+    chunks = cleaned_text.split("+")
     cleaned_chunks = []
 
     for chunk in chunks:
@@ -108,10 +108,7 @@ def submit_survey(name, country):
     return f"Thank you, {name}! Your survey response has been recorded.", name, country
 
 
-with gr.Blocks(theme = gr.themes.Soft(
-    primary_hue="yellow",
-    neutral_hue="#fcf1db",
-)) as demo:
+with gr.Blocks() as demo:
     name_state = gr.State()
     country_state = gr.State()
     chat_state = gr.State([])