[ER] Refactored adding local file actions to a func.
[ER] Add URL actions before the standard actions.
[ER] Removed excessive arg() call.
[Pogooglue] Handle only String entities.
[ER] Pass selected text to AddLocalFileActions().
[ER] Move "Selected" data filter to main handler.
[ER] Use Util::SlotClosure.
[ER] Suggest data filtering local files as URLs as well.