fix(@angular-devkit/build-angular): respect i18nDuplicateTranslation …

[igord]

…option when duplicates exist

Running the extract-i18n command will always log duplicate i18n message IDs as warnings, regardless of the value of the i18nDuplicateTranslation option. With this fix, command will log duplication errors and exit with code 1

Fixes #23635

Already merged to main #30306

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• [x] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
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What is the current behavior?

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Does this PR introduce a breaking change?

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