Prevent index access errors in entity quick bar

[spacegaier]

Breaking change

Proposed change

After selection of an entity in the quickbar, the function _handleSelected() gets called twice. First with the real selection index and then a second time with -1. This PR prevents the invalid access attempts for -1.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes An error is thrown when using the entity quick bar #9952 fixes Shortcut bar causes error when started and closed #9925
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io