Fix spelling error for addOnToCommaSeparated method name

src/main/java/org/mvplugins/multiverse/core/command/MVCommandCompletions.java

@@ -53,7 +53,7 @@
 import org.mvplugins.multiverse.core.world.generators.GeneratorPlugin;
 import org.mvplugins.multiverse.core.world.generators.GeneratorProvider;
 
-import static org.mvplugins.multiverse.core.utils.StringFormatter.addonToCommaSeperated;
+import static org.mvplugins.multiverse.core.utils.StringFormatter.addOnToCommaSeparated;
 
 @Service
 public class MVCommandCompletions extends PaperCommandCompletions {
@@ -163,7 +163,7 @@ private Collection<String> completeWithPreconditions(
             }
         }
         if (context.hasConfig("multiple")) {
-            return addonToCommaSeperated(context.getInput(), handler.getCompletions(context));
+            return addOnToCommaSeparated(context.getInput(), handler.getCompletions(context));
         }
         return handler.getCompletions(context);
     }
@@ -334,7 +334,7 @@ private Collection<String> suggestPlayersArray(BukkitCommandCompletionContext co
                 matchedPlayers.add(name);
             }
         }
-        return addonToCommaSeperated(context.getInput(), matchedPlayers);
+        return addOnToCommaSeparated(context.getInput(), matchedPlayers);
     }
 
     private Collection<String> suggestSpawnCategoryPropsName(BukkitCommandCompletionContext context) {

src/main/java/org/mvplugins/multiverse/core/config/node/ListConfigNode.java

@@ -120,9 +120,9 @@ private void setDefaults() {
     private void setDefaultSuggester() {
         if (itemSuggester instanceof SenderNodeSuggester senderItemSuggester) {
             this.suggester = (SenderNodeSuggester)(sender, input) ->
-                    StringFormatter.addonToCommaSeperated(input, senderItemSuggester.suggest(sender, input));
+                    StringFormatter.addOnToCommaSeparated(input, senderItemSuggester.suggest(sender, input));
         } else {
-            this.suggester = input -> StringFormatter.addonToCommaSeperated(input, itemSuggester.suggest(input));
+            this.suggester = input -> StringFormatter.addOnToCommaSeparated(input, itemSuggester.suggest(input));
         }
     }
 

src/main/java/org/mvplugins/multiverse/core/utils/StringFormatter.java

@@ -2,6 +2,7 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.Sets;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -71,11 +72,30 @@ private StringFormatter() {
 
     /**
      * Appends a list of suggestions to the end of the input string, separated by commas.
+     *
      * @param input     The current input
      * @param addons    The autocomplete suggestions
      * @return A collection of suggestions with the next suggestion appended
+     *
+     * @deprecated Method name has a spelling error. Use {@link #addOnToCommaSeparated(String, Collection)} instead.
      */
+    @Deprecated(forRemoval = true, since = "5.5")
+    @ApiStatus.ScheduledForRemoval(inVersion = "6.0")
     public static Collection<String> addonToCommaSeperated(@Nullable String input, @NotNull Collection<String> addons) {
+        return addOnToCommaSeparated(input, addons);
+    }
+
+    /**
+     * Appends a list of suggestions to the end of the input string, separated by commas.
+     *
+     * @param input     The current input
+     * @param addons    The autocomplete suggestions
+     * @return A collection of suggestions with the next suggestion appended
+     *
+     * @since 5.5
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public static Collection<String> addOnToCommaSeparated(@Nullable String input, @NotNull Collection<String> addons) {
         if (Strings.isNullOrEmpty(input)) {
             return addons;
         }