[FIX] Core: Start Theme check before onInit hook is processed
[FIX] Core: Start Theme check before onInit hook is processed

Change-Id: I574063ff23f6380a672dc61afa3dcd3b7b80b09e
BCP:  1580089677

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