Fixes the following behavior: 1. Player is ingame and the ingame menu is opened with Esc 2. The left mouse button is held down on one of the ingame menu buttons (e.g. the spectate button) 3. The ingame menu is closed without moving the mouse away from the button 4. The left mouse button is released while ingame 5. The menu is opened again

• Current behavior: The hovered button is immediately activated, as soon as the menu opens, due to the released mouse state being handled as a c...