[SG-28868] Keyboard shortcut does not toggle between light to dark mode on Mac

Created by: gitstart-sourcegraph

Description

• Fix: Alt + t shortcut doesn't work on mac since it returns keycode † instead of normal letter t

Refs

Sourcegraph Issue Gitstart Ticket

Test Plan

1. On a Mac machine, run the webapp
2. While pressing Alt + t, theme of webapp toggles from light to dark or vice-versa

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.