* friend: Stub IsFriendListCacheAvailable and EnsureFriendListAvailable
This PR stubs IsFriendListCacheAvailable and EnsureFriendListAvailable call of friend service which close#2896.
Sadly, Super Bomberman R Online is still stuck on the loading screen and keep calling `TryPopFromFriendInvitationStorageChannel`, probably because another issue somewhere.
* Add FW version
* Apply suggestions from gdkchan
Co-authored-by: gdkchan <gab.dark.100@gmail.com>
* Update IFriendService.cs
Co-authored-by: gdkchan <gab.dark.100@gmail.com>
b4f8ae7a75