docs(aio): change HttpClientModule reference to HttpClient
docs(aio): capitalize Http to HTTP
docs(aio): fix typo mistake in 'universal' guide
docs(aio): gets rid of the parentheses and the "e.g." in 'universal' guide
PR Close#21984
Revises both universal and client build to use AOT and webpack for both.
Guide text adjusted accordingly
Dodges CLI client build, expected in near future.
PR Close#18707
yerkebulan
Jesus Rodriguez
Ward Bell