D12337: Give the file dialogs a "Sort by" menu button on the toolbar

[Nathaniel Graham]

ngraham created this revision.
ngraham added reviewers: Frameworks, Dolphin, VDG, rkflx.
ngraham requested review of this revision.

REVISION SUMMARY
  This patch moves the sort order chooser and options out of the somewhat hidden Settings menu and onto the main toolbar, in conjunction with a few string and icon changes to improve the look and feel.

TEST PLAN
  Menu being used in Short view:
  
  Menu being used in Detailed Tree View:
  
  Settings menu no longer has (or needs) it:
  
  It's still there in the contect menu, fully accessible for `KDirOperator` clients:

BRANCH
  move-sort-order-chooser-to-toolbar (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D12337

AFFECTED FILES
  src/filewidgets/kdiroperator.cpp
  src/filewidgets/kfilewidget.cpp

To: ngraham, #frameworks, #dolphin, #vdg, rkflx
Cc: anemeth
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