refactor(dashboard): explicitly define change detection strategy

[spliffone]

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Documentation.
Examples.
Dashboards Demo.
Playwright report.

Coverage Reports:

• charts-ng
• dashboards-ng
• element-ng
• element-translate-ng
• maps-ng
• native-charts-ng

[gemini-code-assist]

Code Review

This pull request refactors the dashboard components to utilize Angular Signals for state management, specifically updating properties like hide, dashboardFrameEndPadding, and _isExpanded. The review feedback recommends renaming _isExpanded to isExpandedSignal to comply with ESLint naming conventions without needing to disable linting rules. Additionally, it is noted that the manual markForCheck() call can be removed since updating the dashboardFrameEndPadding signal automatically triggers change detection.

Important

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[spliffone]

/gemini review

[gemini-code-assist]

Code Review

This pull request refactors the dashboard and its various widgets to use ChangeDetectionStrategy.OnPush for optimized change detection. It also migrates several properties, such as hide, dashboardFrameEndPadding, and isExpanded, to Angular Signals, updating the corresponding templates, component logic, and unit tests to call them as functions. There are no review comments, and I have no feedback to provide.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
For more details on the timeline and next steps, please review the Help Documentation.

[spike-rabbit]

same here, please do not change to OnPush as this may breaks mutation on single properties of input objects.