mdui-text-area emits "input" event twice

[stavros-tsioulis]

<mdui-text-field id="inputField"></mdui-text-field>

<script>
const textField = window.inputField
textField.addEventListener('input', event => console.log(event.target.value))
</script>

In the above example, each input will trigger a console log twice.
This likely happens because the input event is propagated downwards. For example, this will actually print in the console:

<div oninput="console.log('input')">
  <input />
</div>

Since, on input, the mdui-text-field component also emits an input CustomEvent, I believe this is why the duplication happens.

mdui/packages/mdui/src/components/text-field/index.ts

Lines 830 to 836 in c6dcfe2

	private onInput() {
	this.value = this.inputRef.value!.value;
	if (this.isTextarea) {
	this.setTextareaHeight();
	}
	this.emit('input');
	}