[INTERNAL] sap.m.NavContainer: continued fix of I929623c58

Change-Id: I6be2cb97092328d35445c8cb4b1b4611c3eb3ee6
[FIX] sap.m.Bar/BarBase css styles for HCB theme - optimization

[INTERNAL]
- box-sizing changed

Change-Id: I40be66adcc8ea3cd83b58655a11f94152357ece2
Signed-off-by: Lidiya Bobeva <lidiya.bobeva@sap.com>
Merge "[FIX] sap.m.Bar/BarBase css styles for HCB theme - optimization"
Merge "[INTERNAL] sap.m.NavContainer: continued fix of I929623c58"