[INTERNAL] sap.m.ListItemBase: Fix ontap event in case of text selection
[INTERNAL] sap.m.ListItemBase: Fix ontap event in case of text selection

Replace \n with an empty string in the window.getSelection() to enable
correct handling of item selection using ontap event.
Resolves:
BCP: 1880214655

Change-Id: I2bc59df934fca93e0a3f82e6b3c09ae0f73abbb8

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