Cannot zoom using external keyboard on laptop

[F0urchette]

Description

It appears we cannot zoom into the overview graph using an external keyboard on a laptop (we tested it only on MacOS).
It's still possible to zoom using the integrated keyboard and pad even if the keyboard is connected.

Steps to reproduce

• Connect a keyboard to the laptop.
• Try to zoom on the overview graph.

Actual result

• Do not zoom.

Expected result

• Zoom.

Hints

Probably a problem with the event fired on zoom not being actually fired or not being the same event for some reason.
The zoom is managed in overview.component.ts file in setupZoom method around line 265.