Missing buttons margins in pressed state

[cornelionce]

[Affected Versions]:

• Latest Firefox/Chrome/Safari

[Affected Platforms]:

• Windows 10x64
• macOS BigSur 11.6.2

[Prerequisites]:

• The Hubs Cloud stack is set up.
• The user is logged in and has joined a room

[Steps to reproduce]:

1. Click on the "Invite", "More" or "^" buttons.
2. Observe the button UI.

[Expected results]:

• The button is correctly displayed in the pressed state.

[Actual results]:

• The button margins missing.

[Notes]:

• We should have the same behavior / UI for all the buttons, for consistency.

• Attaching several screenshots with the expanded menus.

• For the rest of the buttons, the margins are properly displayed in pressed state.