[FIX] sap.m.Popover: make the content wrapper have a minimum width of 100%
[FIX] sap.m.Popover: make the content wrapper have a minimum width of 100%

Change-Id: Iffd741985d6a68b7f9852ef7f679b338f8eafe63
BCP: 1570008271

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