[BUGFIX] Order storages in treeview by name

The storages can not be ordered manualy and in list view they
are by default ordered by name.
But in the tree views (file module, element browser) there is
no ordering set.

This change sets the default ordering to name when the storageRowCache
is initialised.

Resolves: #56824
Releases: 6.2
Change-Id: I8e879920bc6da14156ce486b8c25b1b8820f896b
Reviewed-on: https://review.typo3.org/28402
Reviewed-by: Marcin Sągol
Reviewed-by: Stefan Neufeind
Reviewed-by: Christoph Lehmann
Tested-by: Christoph Lehmann
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer