Search bar steals "Cmd+L" keybinding

Created by: mrnugget

1. Go to https://k8s.sgdev.org/github.com/sourcegraph/sourcegraph
2. Click in the new search bar at the top
3. Hit Cmd+L which I use in Firefox to select the browser's location
4. Text in the search bar is selected

What I expected:

4. Location in browser's location bar is selected