fix(onboarding): fix onboarding screen freezing when on click on it
Andrey Nering
created
To reproduce:
* `rm -rf ~/.config/crush; rm -rf ~/.local/share/crush`
* Open `crush` on onboarding
* Notice how you can navigate using arrows, filter, etc
* Click on the screen
* Not the onboarding screen will stop processing events properly
(can't navigate, filter, choose model, etc)
Closes #812
Follow-up of #817