replaced custom parsing with mojangson

lib/plugins/entities.js

@@ -1,5 +1,6 @@
 const { Vec3 } = require('vec3')
 const conv = require('../conversions')
+const mojangson = require('mojangson')
 // These values are only accurate for versions 1.14 and above (crouch hitbox changes)
 // Todo: hitbox sizes for sleeping, swimming/crawling, and flying with elytra
 const PLAYER_HEIGHT = 1.8
@@ -943,12 +944,7 @@ function extractSkinInformation (properties) {
     return undefined
   }
 
-  const skinTextureString = Buffer.from(props.textures.value, 'base64').toString('utf8')
-    .split('{textures:').join('{\"textures\":')
-    .split('{SKIN:').join('{\"SKIN\":')
-    .split('{url:').join('{\"url\":')
-
-  const skinTexture = JSON.parse(skinTextureString)
+  const skinTexture = mojangson.parse(Buffer.from(props.textures.value, 'base64').toString('utf8'))
 
   const skinTextureUrl = skinTexture?.textures?.SKIN?.url ?? undefined
   const skinTextureModel = skinTexture?.textures?.SKIN?.metadata?.model ?? undefined