feat(core): stabilize incremental hydration api (angular#60888)

This removes the developer preview label for incremental hydration APIs.

PR Close angular#60888

Author: thePunderWoman

adev/src/content/guide/incremental-hydration.md

@@ -1,7 +1,5 @@
 # Incremental Hydration
 
-TIP: Incremental hydration is currently in [developer preview](/reference/releases#developer-preview).
-
 **Incremental hydration** is an advanced type of [hydration](guide/hydration) that can leave sections of your application dehydrated and _incrementally_ trigger hydration of those sections as they are needed.
 
 ## Why use incremental hydration?

packages/core/src/hydration/api.ts

@@ -340,8 +340,6 @@ export function withI18nSupport(): Provider[] {
  * Returns a set of providers required to setup support for incremental hydration.
  * Requires hydration to be enabled separately.
  * Enabling incremental hydration also enables event replay for the entire app.
- *
- * @developerPreview
  */
 export function withIncrementalHydration(): Provider[] {
   const providers: Provider[] = [

packages/platform-browser/src/hydration.ts

@@ -132,7 +132,6 @@ export function withEventReplay(): HydrationFeature<HydrationFeatureKind.EventRe
  *   providers: [provideClientHydration(withIncrementalHydration())]
  * });
  * ```
- * @experimental
  * @publicApi
  * @see {@link provideClientHydration}
  */