[FIX] sap.m.Popover: HCB theme clean up

Change-Id: Idbfa729bd2ddb6ccc4cecbe0aeaf41d0a6149a18
[INTERNAL] Explored: PageListReportIconTabBar and PageListReportToolbar
samples

Change the samples according to Ux requirements and IconTabBar new
features.

Change-Id: Ibf3764871c628cb2a81ed610e54a9f4496b2feaa
Merge "[FIX] sap.m.Popover: HCB theme clean up"
Merge "[INTERNAL] Explored: PageListReportIconTabBar and PageListReportToolbar samples"