[FIX] sap.m.LightBox: Speech output is now more clear
[FIX] sap.m.LightBox: Speech output is now more clear

Change-Id: Ib8a1c4eddca9bf756dd3f0ee74ec3d0a17c1c20a
BCP: 1980211004

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5