ECMS-5832: Views tab disappears in Content Administration

Problem analysis:
  - when remove a view in ECMTemplate, by calling setRenderedChild, it reloads this tab and disable another tab

Fix description:
 - Change the way to setRenderSibling
ECMS-5942: Error while displaying Content Explorer without buttons

Fix description:
  - Show also the uiActionsBarContainer if there is no button in the action bar
  - Define the background color and min-height value for the action bar's tab
ECMS-6087: [SCV] Missing scroll bar in search result tab

Fix description:
* Add stylesheet for that tab
ECMS-6077 Can't drag and drop from left to right panel

Fix description: backport from ECMS-5329 fix.
ECMS-5897: [File Management View] Sort by Name and Date is not correct

Fix description:
  - Change the default value for sort
  - in case sort by date, revert the default sort value
ECMS-5847 [Content Explorer] Incorrect position of checkbox in Set up browsing Preferences in some languages (Vietnamese, German)

Fix description:
* Define/update the style for check boxes and their content
Merge commit 'c69870a7223f5dcfd9b6439ac7f41996965ae680' into HEAD