Clamp /searchcontainer radius (#117)

Default max is 10 because that's the default server view distance.

plugin/src/main/java/com/lishid/openinv/commands/SearchContainerCommand.java

@@ -76,6 +76,10 @@ public class SearchContainerCommand implements TabExecutor {
             }
         }
 
+        // Clamp radius.
+        int configMax = plugin.getConfig().getInt("settings.command.searchcontainer.max-radius", 10);
+        radius = Math.max(0, Math.min(radius, configMax));
+
         World world = senderPlayer.getWorld();
         Chunk centerChunk = senderPlayer.getLocation().getChunk();
         StringBuilder locations = new StringBuilder();

plugin/src/main/java/com/lishid/openinv/util/ConfigUpdater.java

@@ -71,6 +71,7 @@ public record ConfigUpdater(OpenInv plugin) {
     private void updateConfig5To6() {
         plugin.getServer().getScheduler().runTask(plugin, () -> {
             plugin.getConfig().set("settings.command.open.no-args-opens-self", false);
+            plugin.getConfig().set("settings.command.searchcontainer.max-radius", 10);
             plugin.getConfig().set("config-version", 6);
         });
     }