Jupyter Consoles do not work in the bundled app about spine-toolbox

[PekkaSavolainen]

Done. Will be in the next development snapshot and upcoming releases.

The following is mostly for @soininen

There was a price to pay. The bundle grew by ~100Mb and the number of files increased from about 8000 to 14000. This is all well and good but upload_artifact@v4 gave me a headache. I was hit by this issue actions/upload-artifact#485 because of the increase in the number of files. I tried using Github's Powershell to create the .zip file (with Compress-Archive cmdlet) before running upload_artifact, so that it would only upload one file instead of 14000. This 'worked' but I was hit by another issue actions/upload-artifact#39. The zip-file was inside another zip file, which I thought would be too confusing for first time users. I ended up using the soon-to-be-deprecated upload_artifact@v3, which does not have issue 485. Unfortunately, the Upload archive step is really slow with v3. I'll change it back to v4 if I get bored waiting and then we'll just have to live a with double zipped bundle until we find a solution.