Fix nickname regex bug

The previous implementation didn't consider tbe case when the last player in the list doesn't have a nickname, leaving an empty "always match" part which messed up the formatting
@FigyTuna
Also added editorconfig for GitHub formatting

.editorconfig

@@ -0,0 +1,19 @@
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = false
+indent_style = space
+indent_size = 4
+
+[*.json]
+indent_style = space
+indent_size = 2
+
+[*.java]
+indent_style = tab
+tab_width = 4
+
+[{*.yml, *.yaml}]
+indent_style = space
+indent_size = 2
+

src/main/java/buttondevteam/chat/ChatProcessing.java

@@ -257,18 +257,16 @@ public class ChatProcessing {
             namesb.append(")");
             StringBuilder nicksb = new StringBuilder("(?i)(");
             boolean addNickFormatter = false;
-            final int size = Bukkit.getOnlinePlayers().size();
             int index = 0;
             for (Player p : Bukkit.getOnlinePlayers()) {
                 final String nick = PlayerListener.nicknames.inverse().get(p.getUniqueId());
                 if (nick != null) {
-                    nicksb.append(nick);
-                    if (index < size - 1)
-                        nicksb.append("|");
+	                nicksb.append(nick).append("|");
                     addNickFormatter = true; //Add it even if there's only 1 player online (it was in the if)
                 }
                 index++;
             }
+	        nicksb.deleteCharAt(nicksb.length() - 1);
             nicksb.append(")");
 
             Consumer<String> error = message -> {