Fix Angular internationalization for V3

[DivergentEuropeans]

V2's Angular internationalization is broken. Some brief preliminary research shows us Angular has native variable substitution support, which it didn't last decade when we added a 2nd library to handle Angular i18n. The V3 task appears to be:

• remove 1 of the unneeded libraries
• update existing TranslationLoaderService to use new Angular internationalization implementation
• this likely requires use of Angular CLI

internationalization in React is dev controlled and therefore works perfectly.

Tasks

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1. Update System Settings & Preferences app to Angular 18 #1027
   +0
2. Update Sample Angular App to Angular 18 #1028
   +0
3. Update Desktop's TranslationLoaderService to use new internationalization #1029
   +0
4. Update Sample Angular App to use new TranslationLoaderService #1030
   +0