LPS-35170 Fix error with import link in manage pages toolbar
LPS-35198 Set start and end dates in portletDataContext
LPS-35198 Add className to PortletDataHandlerBoolean
LPS-35198 Add classNames to Web Content controls
LPS-35198 Render subdialogs in the form node instead of the root node.

This prevents the inputs to get removed from the form and therefore not being sent with the request. Rendering the subdialogs in the form requires disabling the default behaviour of the dialog buttons so that the form is not submitted when they are clicked.
LPS-35198 Rename some methods of the ExportImport JS component (no changes)
LPS-35198 Render initial selected labels dynamically
LPS-35198 Display the number of exportable elements
LPS-35198 - Source formatting
LPS-35198 SF