fix(angular): export missing lifecycle interfaces for standalone package (#28346)

Issue number: N/A

Resolves feedback identified here:
baa37ef1e3 (r1356414362)

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

The lifecycle interfaces are not exported from
`@ionic/angular/standalone`.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Lifecycle interfaces are exported from `@ionic/angular/standalone`.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

packages/angular/src/index.ts

@@ -37,11 +37,12 @@ export {
   AngularDelegate,
   NavParams,
   IonicRouteStrategy,
+  ViewWillEnter,
+  ViewWillLeave,
+  ViewDidEnter,
+  ViewDidLeave,
 } from '@ionic/angular/common';
 
-// TYPES
-export * from './types/ionic-lifecycle-hooks';
-
 // PACKAGE MODULE
 export { IonicModule } from './ionic-module';
 

packages/angular/src/types/ionic-lifecycle-hooks.ts

@@ -1,31 +0,0 @@
-/**
- *  https://ionicframework.com/docs/api/router-outlet#life-cycle-hooks
- */
-
-export interface ViewWillEnter {
-  /**
-   * Fired when the component routing to is about to animate into view.
-   */
-  ionViewWillEnter(): void;
-}
-
-export interface ViewDidEnter {
-  /**
-   * Fired when the component routing to has finished animating.
-   */
-  ionViewDidEnter(): void;
-}
-
-export interface ViewWillLeave {
-  /**
-   * Fired when the component routing from is about to animate.
-   */
-  ionViewWillLeave(): void;
-}
-
-export interface ViewDidLeave {
-  /**
-   * Fired when the component routing to has finished animating.
-   */
-  ionViewDidLeave(): void;
-}