In v14, we've introduced core concepts to allow Components, Directives and Pipes to configure their dependencies
 without the need to use NgModules and without the need to be declared in an NgModule. The concepts and initial
set of APIs were marked as "developer preview" to allow developers to use these APIs and share the feedback.

Since v14, we've been reviewing the entire API surface of the framework and either updating existing APIs to support standalone or creating new APIs that allowed to use Router, HttpClient and other abstractions without NgMod
ules.

Based on the mentioned work to review and stabilize APIs and also based on the positive feedback from the commun
ity, we are happy to announce that the Standalone APIs are promoted to stable!

This commit updates vast majority of standalone-related APIs to drop the `@developerPreview` label, which effect
ively documents then as stable.

Two APIs that retained the `@developerPreview` annotations are:
- withRequestsMadeViaParent (from `@angular/common/http`)
- renderApplication (from `@angular/platform-server`)

We plan to collect some additional feedback for the mentioned APIs and drop the `@developerPreview` annotation b
efore the next major release.

Co-Authored-By: Alex Rickabaugh <alx@alxandria.net>
Co-Authored-By: Andrew Scott <atscott@google.com>
Co-Authored-By: Dylan Hunn <dylhunn@gmail.com>
Co-Authored-By: Jessica Janiuk <jessicajaniuk@google.com>
Co-Authored-By: JoostK <joost.koehoorn@gmail.com>
Co-Authored-By: Kristiyan Kostadinov <crisbeto@abv.bg>
Co-Authored-By: Pawel Kozlowski <pkozlowski.opensource@gmail.com>

PR Close #47754