Allow preventing link insertion in RichContentEditable

[julien-nc]

When getting a picker result, emit an event so parent components can prevent it to be inserted in the content and add some custom processing.

This could be useful in Talk when getting an OpenStreetMap link. A location rich object could be shared instead of inserting the link.

[juliushaertl]

Suggested change

	run: true,
	insertText: true,

Might make it a bit clearer what this is about.

[julien-nc]

👍

[juliushaertl]

Haven't tested but code looks good

[Antreesy]

Works, tested against Talk

Note for self:

<NcRichContenteditable @smart-picker-submit="handleSmartPickerSubmit" />

handleSmartPickerSubmit(event) {
	console.log(event)
	event.insertText = false
},