Investigate signature_pad 4.0.2 not working in a webcomponent environment

[F0rce]

Describe the bug
While giving the frontend Webcomponent (lit-signature-pad) a bigger overhaul I tried to update the npm package (signature_pad) to 4.0.1

I changed to code to use the new EventEmitter methods that were mentioned in the changelog. But the "endStroke" Event (mousebutton was released to stop painting), which is used to send the image uri to the Java Backend was never emitted, where "beginStroke" (mousebutton is clicked and hold to start painting) was always send correctly.

Need to investigate a bit more, but still wanted to make a minor release.

To Reproduce
Steps to reproduce the behavior:

1. Update signature_pad to 4.0.1
2. Refactor code to use EventEmittor (.addEventListener)
3. "endStroke" is never sent

Expected behavior
"endStroke" Event should be sent

Edit:
Signature_Pad 4.0.2 has been released, so I have to test it with the new version.