account for spaces in audio file

app.py

@@ -1450,7 +1450,7 @@ def transcribe_btn_click(audio_choice):
     # move the audio and transcript to temp folder
     temp_folder = "./demo/temp"
     os.makedirs(temp_folder, exist_ok=True)
-    os.system(f"cp {orig_audio} {temp_folder}")
+    os.system(f"cp \"{orig_audio}\" \"{temp_folder}\"")
     filename = os.path.splitext(orig_audio.split("/")[-1])[0]
     with open(f"{temp_folder}/{filename}.txt", "w") as f:
         f.write(orig_transcript)