docs: convert all @experimental tags to @publicApi tags (#26595)

PR Close #26595

packages/platform-server/src/tokens.ts

@@ -11,7 +11,7 @@ import {InjectionToken} from '@angular/core';
 /**
  * Config object passed to initialize the platform.
  *
- * @experimental
+ * @publicApi
  */
 export interface PlatformConfig {
   document?: string;
@@ -21,7 +21,7 @@ export interface PlatformConfig {
 /**
  * The DI token for setting the initial config for the platform.
  *
- * @experimental
+ * @publicApi
  */
 export const INITIAL_CONFIG = new InjectionToken<PlatformConfig>('Server.INITIAL_CONFIG');
 
@@ -29,7 +29,7 @@ export const INITIAL_CONFIG = new InjectionToken<PlatformConfig>('Server.INITIAL
  * A function that will be executed when calling `renderModuleFactory` or `renderModule` just
  * before current platform state is rendered to string.
  *
- * @experimental
+ * @publicApi
  */
 export const BEFORE_APP_SERIALIZED =
     new InjectionToken<Array<() => void>>('Server.RENDER_MODULE_HOOK');