Update Window and Menu item from "Preconfigured-" to "Saved-" Report and add lables to the dialog with help texts
Saved report configuration ui tuning

- Settle for 'Saved report configuration' as name of the beast
  in favour of 'Custom report' (ambiguous with full scheme reports added by the user)
  or 'Saved report' (ambiguous with exported html reports)
  or 'Preconfigured report' (which I personally like better but got criticisms)
- Group menu items related to saved report configurations together
  in the Report menu