Fixes TabExecutor being expected instead of TabCompleter

src/main/java/net/knarcraft/knarlib/plugin/ConfigCommentPlugin.java

@@ -3,7 +3,7 @@ package net.knarcraft.knarlib.plugin;
 import net.knarcraft.knarlib.config.StargateYamlConfiguration;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.PluginCommand;
-import org.bukkit.command.TabExecutor;
+import org.bukkit.command.TabCompleter;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.plugin.PluginDescriptionFile;
 import org.bukkit.plugin.java.JavaPlugin;
@@ -81,16 +81,16 @@ public abstract class ConfigCommentPlugin extends JavaPlugin {
      *
      * @param commandName     <p>The name of the command to register</p>
      * @param commandExecutor <p>The command executor to register for the command</p>
-     * @param tabExecutor     <p>The tab executor to register for the command</p>
+     * @param tabCompleter    <p>The tab completer to register for the command</p>
      */
     @SuppressWarnings("SameParameterValue")
     protected void registerCommand(@NotNull String commandName, @NotNull CommandExecutor commandExecutor,
-                                 @Nullable TabExecutor tabExecutor) {
+                                   @Nullable TabCompleter tabCompleter) {
         PluginCommand pluginCommand = this.getCommand(commandName);
         if (pluginCommand != null) {
             pluginCommand.setExecutor(commandExecutor);
-            if (tabExecutor != null) {
-                pluginCommand.setTabCompleter(tabExecutor);
+            if (tabCompleter != null) {
+                pluginCommand.setTabCompleter(tabCompleter);
             }
         } else {
             getLogger().log(Level.SEVERE, "Failed to register command " + commandName);