Hitting enter during package search clears the search

### Conda-forge documentation

- [x] I could not solve my problem using the conda-forge documentation.

### Installed packages

```shell
N/A
```

### Environment info

```shell
https://whatismybrowser.com/w/9XGC29H
```

### Issue

On the package search functionality on https://conda-forge.org/packages/ typing in "pydantic" and then hitting "Enter" clears the search. I would expect it to complete the search, or do nothing since the search is already running.