[INTERNAL] List: toolbar fix in footer of the page
[INTERNAL] List: toolbar fix in footer of the page

Changing sap.m.Bar control to sap.m.OverflowToolbar so that all the
buttons in the toolbar are visible in small screens.
BCP: 1970239895

Change-Id: I04fcf531b7d2fd7a90cd6bfb0f8790495feba010

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