Update DataDir and ConfigDir paths in startup.json

Separated DataDir and ConfigDir into their own subfolders
within C:/ProgramData/jellyfin by updating their paths to
"data" and "config" respectively. This improves organization
of data and configuration files.

Jellyfin.Server/startup.json

@@ -4,11 +4,11 @@
   "_priority": "Command-line args \u003E Environment variables \u003E This file \u003E Built-in defaults",
   "_examples": "See startup.linux.json or startup.windows.json in Resources/Configuration for other OS examples",
   "Paths": {
-    "DataDir": "C:/ProgramData/jellyfin",
-    "ConfigDir": "C:/ProgramData/jellyfin",
+    "DataDir": "C:/ProgramData/jellyfin/data",
+    "ConfigDir": "C:/ProgramData/jellyfin/config",
     "CacheDir": "C:/ProgramData/jellyfin/cache",
     "LogDir": "C:/ProgramData/jellyfin/log",
     "TempDir": "C:\\Users\\wjones\\AppData\\Local\\Temp\\jellyfin",
     "WebDir": "C:/ProgramData/jellyfin/wwwroot"
   }
-}
+}