[INTERNAL][FIX] sap.f.routing.TargetHandler: navigation to current page skipped
[INTERNAL][FIX] sap.f.routing.TargetHandler: navigation to current page skipped

Issue
The routing always closes all currently opened dialogs,
because TargetHandler.prototype._applyNavigationResult returns always true.

Solution
Skip navigation if the next view is already the displayed view.

BCP: 1770353074

Change-Id: I4bb222ff91cd7a7ade14d02601000fa344179d40

SAP/openui5,SAP/openui5,SAP/openui5,SQCLabs/openui5,SQCLabs/openui5,SQCLabs/openui5,SAP/openui5,cschuff/openui5,nzamani/openui5,cschuff/openui5,nzamani/openui5,nzamani/openui5,cschuff/openui5