Endpoint missing

### Description of the bug:

In my browser console, I see this problem after uploading a file:

```
GET http://127.0.0.1:5000/get_files 404 (NOT FOUND)
(anonymous) @ event-listener.js:26
Promise.then
(anonymous) @ event-listener.js:14
```

I cannot find this endpoint in the Flask app.

Is something missing here?

### Actual vs expected behavior:

_No response_

### Any other information you'd like to share?

_No response_