Fix Firefox quick bar issue by allowing Ctrl+P to toggle modes

[donkawechico]

Proposed change

If quick bar is already launched, hitting the launch shortcut again will switch between modes.

This is both a fast, natural way to switch between modes, and also would (mostly) resolve the bug where Firefox will never allow Ctrl+Shift+P: #7410

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 Quick Bar: Shortcut for command input not working in Firefox #7410
• This PR is related to issue:
• 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