feature(core): pass through paste event to pasteHandler getAttributes

[bdbch]

Please describe your changes

This PR passes through the ClipboardEvent coming from the actual paste event down to the getAttributes function inside the pasteEvent handler for MarkPasteRule and NodePasteRules.

This allows us to do more checks on the paste without breaking out of the Tiptap priority system.

This way I also fixed an issue with the Link extension being to agressive as it was ignoring all priorities on extensions when doing the pasteHandling.

This will fix #4347 as it was the issue bringing this up to me.

How did you accomplish your changes

• Inside the PasteHandlerPlugin I added variables to store the paste/drop events in
• Those are passed down to the handler from where they are passed to the getAttributes function
• After that, the paste and drop event are set back to empty events

How have you tested your changes

I tested my changes locally to see if the YouTube extension works fine again while the linking from the link extension still works on paste.

How can we verify your changes

1. Checkout this PR
2. Add the Link extension to the YouTube demo
3. Try pasting a normal link (should work as usual)
4. Try pasting a youtube video (this now should embed the video)

Remarks

• This should be backwards compatible and non breaking as the new parameter is optional to use.

Checklist

• The changes are not breaking the editor
• Added tests where possible
• Followed the guidelines
• Fixed linting issues

Related issues

• fixes [Bug]: YouTube video pasting broken with Link extension since 2.1.0-rc.2 #4347

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[chhuang]

@bdbch any chance of getting this merged?