UI Bug: Microsoft Teams Apps page slider issue

I was browsing through the Microsoft teams on Firefox v76.0.1 on macOS Mojave 10.14.6
On the `Apps` page the slider behaved abnormally.

Initially, the scroller is out of bounds.

Scrolling to the bottom leads to this. The scroller component disassociates itself with the component below it.

This does not looks good and should be fixed