[INTERNAL] sap.m.List: updating the List test page
[INTERNAL] sap.m.List: updating the List test page

Changing the header and footer sap.m.Bar to sap.m.OverflowToolbar to
improve accessibility as the buttons were not visible in the sap.m.Bar
when the browser window is reduced to mobile view.
BCP: 1870317334

Change-Id: I2daed09affd6f9a88e1b5a60e378d0122e2762b1

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