Update primary Minecraft version and addresses

Updated primary Minecraft version and modified addresses.

Author: asbre

servers/nexium/metadata.json

@@ -5,15 +5,14 @@
   "store": "https://store.nexium.it",
   "description": "Entra ora su Nexium.it",
   "addresses": [
-    "nexium.it",
-    "play.nexium.it"
+    "nexium.it"
   ],
   "primaryAddress": "nexium.it",
   "minecraftVersions": [
     "1.21.1",
     "1.21.*"
   ],
-  "primaryMinecraftVersion": "1.21.*",
+  "primaryMinecraftVersion": "1.21.1",
   "primaryColor": "#5454FC",
   "secondaryColor": "#3232C9",
   "primaryLanguage": "it",