Apply and enforce import ordering rules

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/help/IndexHelpTopic.java

@@ -1,5 +1,6 @@
 package org.bukkit.help;
 
+import java.util.Collection;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.ConsoleCommandSender;
@@ -8,8 +9,6 @@ import org.bukkit.util.ChatPaginator;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.Collection;
-
 /**
  * This help topic generates a list of other help topics. This class is useful
  * for adding your own index help topics. To enforce a particular order, use a