Steps to reproduce:

In a dashboard, hover over the widget's Edit and Actions buttons.

Result:

For the widget's Edit button, an "undefined" hint is displayed.

For the Actions button, no hint box is displayed.

The hint box style also differs from that in version 8.0.0beta2 and in the Geomap widget for the widget's Edit and Actions buttons, and the dashboard's Kiosk mode and Actions buttons.

Expected:
Compared with version 8.0.0beta2, the corresponding hint text should be displayed for the Edit and Actions buttons.