Allows the embedding of already-encoded JSON strings into objects in order to avoid double encoded values.

const an_encoded_json_value = "{\"over\": 9000}";
const str = try std.json.stringifyAlloc(allocator, .{
	.name = "goku",
	.power = zul.jsonString(an_encoded_json_value),
}, .{});

zul.JsonString wraps a []const u8 and implements jsonStringify to write the value as-is. This prevents double-encoding of already-encoded values.

Use the zul.jsonString(str) helper to create a JsonString.