Update app.py

app.py

@@ -633,21 +633,17 @@ def display_file_history_in_sidebar():
     col1, col4 = st.sidebar.columns(2)
     with col1:
         if st.button("🗑 Delete All"):
-            for f in all_md:
-                os.remove(f)
-            for f in all_mp3:
-                os.remove(f)
-            for f in all_wav:
+            for f in all_files:
                 os.remove(f)
             st.session_state.should_rerun = True
         if st.button("🗑 Delete All MD"):
-            for f in all_md:
+            for f in md_files:
                 os.remove(f)
             st.session_state.should_rerun = True
         if st.button("🗑 Delete All MP3"):
-            for f in all_mp3:
+            for f in mp3_files:
                 os.remove(f)
-            for f in all_wav:
+            for f in wav_files:
                 os.remove(f)
             st.session_state.should_rerun = True
     with col4: