Open more-info from energy pie chart legend, enlarge legend toggle on touch

[MindFreeze]

Proposed change

Two related fixes to chart legends:

• The energy devices pie/donut chart legend now opens the entity more-info dialog when you tap a device name, the same as the other charts. The "Untracked" slice and external statistics (which have no entity) keep toggling visibility instead.
• On touch devices the legend toggle now has a larger tap target, with the row gap and pointless padding removed so the toggle sits clearly next to its own label. This applies to all chart legends, making the visibility toggle easier to hit on a phone. This changes the spacing and makes the legend a bit less compact on mobile.

Screenshots

Before:

After:

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

Additional information

• This PR fixes or closes issue: fixes Filtering Statistics Chart entities (legend) difficult on mobile #52481
• This PR is related to issue or discussion:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to backend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• There is no commented out code in this PR.
• I have followed the perfect PR recommendations
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

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

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

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