This was very weird on master - `ModDisplay` applied a fade-in on the
`iconsContainer` that lasted 1000ms, and `HUDOverlay` would stack
another 200ms fade-in on top if a replay was loaded. Moving that first
fadeout to a higher level broke fade-out because transforms got
overwritten.
Also makes the mod display initialization sequence (start expanded, then
unexpand) controlled by HUDOverlay rather than mod display itself. This
enabled different treatment depending on whether the mod display is
viewed in the skin editor or in the player.
Co-authored-by: Bartłomiej Dach <dach.bartlomiej@gmail.com>