refactor(icon): remove disableSvgIcons from ´provideIconConfig()` o…

[spliffone]

…ptions

fixes #1510

BREAKING CHANGE: removed disableSvgIcons from ´provideIconConfig()` configuration

Consumer which want to provide their own custom icons must call addIcons during application bootstrap.

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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 removes the disableSvgIcons configuration option from the SiIconComponent and its corresponding tests, simplifying the icon rendering logic. Feedback on these changes suggests removing the now-obsolete icon configuration infrastructure (IconConfig, ICON_CONFIG, and provideIconConfig) entirely to prevent dead code, as well as cleaning up the empty TestBed.configureTestingModule({}) call in the unit tests since it is redundant for standalone components.

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[gemini-code-assist]

Since disableSvgIcons was the only configuration option and has been removed, the entire icon configuration infrastructure (IconConfig, ICON_CONFIG, and provideIconConfig) is now unused dead code. Keeping an empty interface and bypassing the linter with // eslint-disable-next-line @typescript-eslint/no-empty-object-type is a code smell.

Unless there are plans to introduce other configuration options in the near future, please consider removing the configuration infrastructure entirely:

1. Remove IconConfig, ICON_CONFIG, and provideIconConfig.
2. Remove the unused InjectionToken and Provider imports from @angular/core.