fix view_folder analytics issues

* order-of-magnitude values were confusing. now they are just
  the number of zeroes in the folder count (easy!)
* fix use of the obfuscated Fragment name in CLF screen views
* fix search 'folders' counting as "user_folder"
* fix account switch wrongly double-counting the origin folder
  and not counting the dest folder

Change-Id: Ic602d3d0a8d5e98cdcee07dc4c2788068c9f181d
2 files changed