nvda

20482265 - Modern Settings app: import progress bar class from UIA objects mix-in (#12784)

Modern Settings app: import progress bar class from UIA objects mix-in (#12784) * appModules/systemsettings: update copyright header (also remove file name from header text) * appModules/systemsettings: import progress bar class from NVDAObjects.UIA. Re #12783. UIA objects mix-in comes with a dedicated progress bar overlay class to announce values based on range value pattern. As a result progress bar beep is heard for volume meter in Windows 10/11 Settings app. Therefore import progress bar from UIA objects mix-in.