fix: Fix build · angelobreuer/Lavalink4NET@739ad55

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Missing XML comment for publicly visible type or member 'DiscordClientWrapper'

Missing XML comment for publicly visible type or member 'DiscordClientWrapper.DiscordClientWrapper(DiscordClient)'

Missing XML comment for publicly visible type or member 'DiscordClientWrapper.DiscordClientWrapper(DiscordShardedClient)'

Missing XML comment for publicly visible type or member 'ServiceCollectionExtensions'

Missing XML comment for publicly visible type or member 'ServiceCollectionExtensions.AddLavalink(IServiceCollection)'

Cannot convert null literal to non-nullable reference type.

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