Fix off by one for determining server view distance

It was 1 greater than it should've been. lvar renaming
caused the field viewDistance to be read when it should've
been reading the watchDistance

patches/server/Replace-player-chunk-loader-system.patch

@@ -1379,7 +1379,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
  
              this.viewDistance = j;
 -            this.setNoTickViewDistance(this.getRawNoTickViewDistance()); // Paper - no-tick view distance - propagate changes to no-tick, which does the actual chunk loading/sending
-+            this.playerChunkManager.setTickDistance(Mth.clamp(viewDistance, 2, 32)); // Paper - replace player loader system
++            this.playerChunkManager.setTickDistance(Mth.clamp(watchDistance, 2, 32)); // Paper - replace player loader system
          }
  
      }