Screen reader shortcut doesn't launch

[danirabbit]

What Happened?

The screen reader shortcut Super + Alt + S doesn't enable the screen reader in either the Greeter or Installer (which uses the greeter compositor, so I think it's related?)

Steps to Reproduce

1. Boot from install media
2. Attempt to enable screen reader with Super + Alt + S
3. Open the a11y indicator to see that the screen reader is not enabled

Expected Behavior

When pressing the keyboard shorcut Super + Alt + S, the screen reader should be toggled just as it is during a normal session

OS Version

7.x (Early Access)

Software Version

Compiled from git

Log Output

No response

Hardware Info

No response