[INTERNAL] ListBase: prevent meta key handling by the ItemNavigation
[INTERNAL] ListBase: prevent meta key handling by the ItemNavigation

The "alt/meta + left/right" keyboard shortcut is used by the browser to
navigate backward and forward in the browser history.
"alt" in Windows and "meta" in macOS.
The ListBase disabled only the "alt" key for the ItemNavigation. Now also
adding the "meta" key to the disabledModifiers of the ItemNavigation, since
navigating backward and forward was prevented in macOS.
BCP: 2070196219

Change-Id: Ie41f3c3faf4065449259aaa648e04f107a7a6352

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