docs: `@angular/language‑service` is no longer a dev-dependencies (#37521)
docs: `@angular/language‑service` is no longer a dev-dependencies (#37521)

`@angular/
language‑service` is no longer needed as a dev-dependencies, infact we no longer generate project with this dependency as it can conflict with the https://marketplace.visualstudio.com/items?itemName=Angular.ng-template

PR Close #37521

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