Exponentcms Exponent CMS

Fixes regression bug where traditional file manager would display wrong set of files initially (ownly owned and shared files and NOT all files which should be visible by all admins) and a super-admin might not be able to see all files (but a non-super-admin admin would)...admins & super-admins should be able to see all files regardless of whether owned or shared.
(cherry picked from commit 1b7413e) https://github.com/exponentcms/exponent-cms/commit/43e60de612a4cd0a...