fix(input, textarea): clearOnEdit does not clear when pressing Tab (#28005)

Issue number: resolves #27746

---------

<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->

<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->

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

Pressing the Tab key when focused on an input/textarea with
`clearOnEdit` clears the text field and then moves focus to the next
focusable element.

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

- Pressing the Tab key does not clear the text field even when
clearOnEdit is enabled.
- Added test coverage
- I also noticed that input did not have an `index.html` file in the
basic directory, so I added that.

## 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

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

Dev build: `7.3.1-dev.11692202566.13cd16c4`

core/src/components/input/input.tsx

@@ -532,7 +532,7 @@ export class Input implements ComponentInterface {
      * Clear the input if the control has not been previously cleared during focus.
      * Do not clear if the user hitting enter to submit a form.
      */
-    if (!this.didInputClearOnEdit && this.hasValue() && ev.key !== 'Enter') {
+    if (!this.didInputClearOnEdit && this.hasValue() && ev.key !== 'Enter' && ev.key !== 'Tab') {
       this.value = '';
       this.emitInputChange(ev);
     }