[INTERNAL] sap.ui.core.CommandExecution: adjust documentation for visible and enabled functionality
[INTERNAL] sap.ui.core.CommandExecution: adjust documentation for visible and enabled functionality

demo-kit-feedback: 3729
Change-Id: I414176879d8292dd292b9c2975a241acc0c0fcad

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5