fix(many): overlays present if isOpen is true on load (#27933)

Issue number: resolves #27928 

---------

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

Action sheet, alert, picker, and toast did not have logic where the
overlay presents if `isOpen="true"` on load. Modal, popover, and loading
had this logic but did not have test coverage.

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

- Updated action sheet, alert, picker, and toast to present if
`isOpen="true"` on load
- Added test coverage to all overlays for this functionality.

## 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. -->

Dev build: `7.2.3-dev.11691156718.1638345c`

core/src/components/loading/test/is-open/loading.e2e.ts

@@ -23,5 +23,10 @@ configs({ modes: ['ios'], directions: ['ltr'] }).forEach(({ title, config }) =>
       await ionLoadingDidDismiss.next();
       await expect(loading).toBeHidden();
     });
+
+    test('should open if isOpen is true on load', async ({ page }) => {
+      await page.setContent('<ion-loading is-open="true"></ion-loading>', config);
+      await expect(page.locator('ion-loading')).toBeVisible();
+    });
   });
 });