Fix cypress test run for vanilla-es6

[gj262]

Re #1866

The closure compiler optimizes the item "completed" field to "c" which breaks cypress test checks. It could be configured to not do that. However I think a better solution here is to switch to webpack and babel as that it probably more widely used.

Another issue is that the item is not wrapped in a div.view.

And this framework uses blur to complete edit.