Begin implementation of CheckStyle style checking

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

paper-api/src/main/java/org/bukkit/conversations/PluginNameConversationPrefix.java

@@ -9,17 +9,17 @@ import org.jetbrains.annotations.NotNull;
  * that displays the plugin name in front of conversation output.
  */
 public class PluginNameConversationPrefix implements ConversationPrefix {
-    
+
     protected String separator;
     protected ChatColor prefixColor;
     protected Plugin plugin;
-    
+
     private String cachedPrefix;
-    
+
     public PluginNameConversationPrefix(@NotNull Plugin plugin) {
         this(plugin, " > ", ChatColor.LIGHT_PURPLE);
     }
-    
+
     public PluginNameConversationPrefix(@NotNull Plugin plugin, @NotNull String separator, @NotNull ChatColor prefixColor) {
         this.separator = separator;
         this.prefixColor = prefixColor;