fix(radio): persist checked state when items are updated in radio-gro…

…up (#29457)

Issue number: resolves #29442

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## What is the current behavior?
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The state does not stay consistent when the data used to render the
radios are updated.

## What is the new behavior?
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this PR. -->

- The state updates after the component loads, this allows the value to
be set after the radio is rendered.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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

Dev build: 8.1.1-dev.11714760012.1eab947e

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Co-authored-by: Sean Perkins <[email protected]>

core/src/components/radio/radio.tsx

@@ -110,6 +110,18 @@ export class Radio implements ComponentInterface {
  */
  @Event() ionBlur!: EventEmitter<void>;
 
+ componentDidLoad() {
+ /**
+ * The value may be `undefined` if it
+ * gets set before the radio is
+ * rendered. This ensures that the radio
+ * is checked if the value matches. This
+ * happens most often when Angular is
+ * rendering the radio.
+ */
+ this.updateState();
+ }
+
  /** @internal */
  @Method()
  async setFocus(ev: globalThis.Event) {