refactor(dashboards): use signal inputs internally

[chintankavathia]

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[gemini-code-assist]

Code Review

This pull request refactors several components to utilize Angular's new signal inputs (input and model) for better reactivity and consistency. The changes are generally well-executed, migrating @Input() decorators to their signal equivalents and updating property access patterns accordingly. The use of model.required for two-way binding and input.required for one-way inputs is appropriate. However, a critical issue was identified in SiWebComponentWrapperComponent where the editable property was converted from an @Input() to a regular setter, which breaks its ability to receive input from parent components. This needs to be addressed to maintain functionality.

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[github-actions]

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Coverage Reports:

• element-ng
• element-translate-ng