Currently mat-menu handles it keyboard events in the template, however this ignores the overlay's stacking context which can capture some events that it shouldn't.
These changes switch the menu to handling the events through the common dispatcher instead.
Currently
mat-menu
handles it keyboard events in the template, however this ignores the overlay's stacking context which can capture some events that it shouldn't.These changes switch the menu to handling the events through the common dispatcher instead.
Fixes #29996.