fix(@angular/build): auto-inject localize/init in library unit tests#33453
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This pull request conditionally imports @angular/localize/init in virtual test bed initialization files for both Karma and Vitest builders if @angular/localize is installed in the project. It also updates the Angular localize init warning plugin to skip files with an angular: namespace. Feedback was provided to use optional chaining when checking args.namespace to prevent potential runtime errors if the namespace is undefined.
Injects '@angular/localize/init' at the top of the internal virtual initialization file (angular:test-bed-init) if '@angular/localize' is installed in the workspace. This prevents ReferenceErrors when testing libraries that consume localization APIs. Also updates the warning plugin to skip internal imports originating from the 'angular:' namespace.
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Injects '@angular/localize/init' at the top of the internal virtual initialization file (angular:test-bed-init) if '@angular/localize' is installed in the workspace. This prevents ReferenceErrors when testing libraries that consume localization APIs.
Also updates the warning plugin to skip internal imports originating from the 'angular:' namespace.