fix: Use separate chunk for vue and vue-router to prevent multiple imports

[susnux]

Fixes #1842

For some reason vue and vue-router are imported multiple times by different chunks, this causes errors as vue2 is not allowed to be used more than one time in one application.
So it is fixed by create a manual chunk just for vue, vue-router and its dependencies.

[Chartman123]

@susnux If you close the picker without selecting a file/folder, there's another error message in the console:

Uncaught (in promise) Error: FilePicker: No nodes selected

Do you think you can add fix for that to this PR as well or should we create a separate PR for that as this also appears on instances where the original issue isn't showing up?

Forget everything, I've just seen that you fixed that in the other PR as well regarding the buttons ;)

[Chartman123]

I just checked it on my productive instance where I had the issue. The file picker opens like expected.