Issues serializing displayName

[danthedaniel]

com.google.gson.JsonSyntaxException: Expected a com.google.gson.JsonObject but was com.google.gson.JsonPrimitive; at path $
	at knot//com.google.gson.internal.bind.TypeAdapters$34$1.read(TypeAdapters.java:1152)
	at knot//com.google.gson.Gson.fromJson(Gson.java:1361)
	at knot//com.google.gson.Gson.fromJson(Gson.java:1262)
	at knot//com.google.gson.Gson.fromJson(Gson.java:1171)
	at knot//com.google.gson.Gson.fromJson(Gson.java:1107)
	at knot//dev.creesch.model.WebsocketMessageBuilder.lambda$createPlayerList$0(WebsocketMessageBuilder.java:394)