fix(alert): date inputs render correctly in mobile safari (#28495)

Issue number: resolves #28494

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issue. -->

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etc). Submit multiple pull requests if needed. -->

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

The appearance of the input is being set to `none` which clears the
browser appearance settings for height on the control. This results in
the `<input type="date" />` to render without a height.

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

- Minimum height is assigned to the alert input, forcing it to render at
it's expected height
- Date input renders correctly in Mobile Safari

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->


## Other information

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

We have screenshots for this component, but Playwright runs an emulation
of Mobile Safari that does not reproduce this issue that is only present
on device. There for we cannot write a test on this change.

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Co-authored-by: ionitron <[email protected]>

Author: sean-perkins

core/src/components/alert/alert.ios.scss

@@ -105,6 +105,17 @@
   &::-ms-clear {
     display: none;
   }
+
+  &::-webkit-date-and-time-value {
+    /**
+     * The -webkit-date-and-time-value pseudo element is used 
+     * to style the date/time input on iOS/Mobile Safari.
+     * To avoid layout shift between an empty state and a selected state,
+     * we set the height `18px` to match the native input height for 
+     * date/time inputs on iOS/Mobile Safari.
+     */
+    height: 18px;
+  }
 }