This refactors the new file wizard to be more independent. Most of the
control is now done through the saga instead of splitting it between
react and the sagas.
Also fix a few issues while we are touching this:
- pressing enter now accepts the dialog
- newly created file is now activated in the editor
This separates the explorer files state from the fileStorage FileMetadata.
The latter contains extra info that the explorer doesn't need. This
will prevent rerendering each time the file contents change.
This splits the fileStorage archive into two sagas to separate concerns.
fileStorage now just gives a dump of the database and explorer deals
with the user interaction and zipping.
clearAllMocks() does not remove mock implementations, so we need to be
using restoreAllMocks() instead. Also ensure that it is called first
in case the other cleanup code needs to call a mocked function.
David Lechner