Fix JS errors when inserting references

ve.ui.MWReferenceDialog.prototype.teardown:
* Pass ranges rather than nodes to transaction builders
* Don't do a removal in insertion mode, we know the removal range
  will be empty

ve.dm.Transaction.newFromDocumentInsertion:
* Correctly splice the edited internalItem into listData in the case
  that newDoc isn't a document slice of doc
* Rename range to spliceItemRange for clarity
* Introduce spliceListNodeRange and set it to either newDoc's
  listNodeRange or doc's depending on whether newDoc is a slice of doc

Bug: 57683
Change-Id: Iae7de7701ae86bed89b707038407243d82249e1a
Merge "Fix JS errors when inserting references"