feat(divider): add new ion-divider component (#30270)

Issue number: internal
---------

## What is the new behavior?
- Introduces a new component, `ion-divider` which has two props,
`spacing` and `inset`.
- Adds e2e tests to both `spacing` and `inset` props

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

## Other information
- As discussed with the PO, using this new component inside an
`ion-item` is out of scope , for now.

---------

Co-authored-by: Brandy Smith <brandyscarney@users.noreply.github.com>
Co-authored-by: Gonçalo M. <goncalo.martins@outsystems.com>
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>

packages/angular/src/directives/proxies-list.ts

@@ -25,6 +25,7 @@ export const DIRECTIVES = [
   d.IonContent,
   d.IonDatetime,
   d.IonDatetimeButton,
+  d.IonDivider,
   d.IonFab,
   d.IonFabButton,
   d.IonFabList,

packages/angular/src/directives/proxies.ts

@@ -703,6 +703,28 @@ export class IonDatetimeButton {
 export declare interface IonDatetimeButton extends Components.IonDatetimeButton {}
 
 
+@ProxyCmp({
+  inputs: ['inset', 'spacing']
+})
+@Component({
+  selector: 'ion-divider',
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  template: '<ng-content></ng-content>',
+  // eslint-disable-next-line @angular-eslint/no-inputs-metadata-property
+  inputs: ['inset', 'spacing'],
+})
+export class IonDivider {
+  protected el: HTMLIonDividerElement;
+  constructor(c: ChangeDetectorRef, r: ElementRef, protected z: NgZone) {
+    c.detach();
+    this.el = r.nativeElement;
+  }
+}
+
+
+export declare interface IonDivider extends Components.IonDivider {}
+
+
 @ProxyCmp({
   inputs: ['activated', 'edge', 'horizontal', 'mode', 'theme', 'vertical'],
   methods: ['close']