[formatting] add newline to file(s) (#1508)

* Trail appropriate files with a new line

* For some ironic reason it ignored itself

Probably because it wasn’t tracked/commited yet.

* Rename newlines to server executable naming pattern

server/src/mindustry/server/ServerLauncher.java

@@ -82,4 +82,4 @@ public class ServerLauncher implements ApplicationListener{
 
         Events.fire(new ServerLoadEvent());
     }
-}
+}