Update world border in constructor

Prevents us from thinking the player is in the border before we get the packet.

connector/src/main/java/org/geysermc/connector/network/session/cache/WorldBorder.java

@@ -108,6 +108,8 @@ public class WorldBorder {
 
     public WorldBorder(GeyserSession session) {
         this.session = session;
+        // Initialize all min/max/warning variables
+        update();
     }
 
     /**