LPS-44362 Adding new attribute to portlet data handlers - new attribute serves a different purpose from previous alwaysStaged keeping that deprecated
LPS-44362 Adding new method to have an option to query is PDHs which has always staged data
LPS-44362 Deprecate categories key and apply changes everywhere it's needed to export and import categories
LPS-44362 Apply refactoring to Category admin portlet data handler
LPS-44362 Update tests where necessary
LPS-44362 Apply changes to the UI portion
LPS-44362 Fix LAR name
LPS-44362 Minor source formatting
LPS-44362 Remove obsolete Lang key
LPS-44362 Lang keys