Update app.py

app.py

@@ -56,7 +56,7 @@ def home():
         recognition.onresult = (event) => {
             let currentTranscription = '';
             for (const result of event.results) {
-                currentTranscription += result[0].transcript;
+                currentTranscription = result[0].transcript;
             }
             liveOutput.textContent = currentTranscription;
             if (lastTranscription !== currentTranscription) {