Fix Velocity/Sponge config location

sponge/src/main/java/com/viaversion/viabackwards/SpongePlugin.java

@@ -48,7 +48,7 @@ public class SpongePlugin implements ViaBackwardsPlatform {
     @Listener
     public void constructPlugin(ConstructPluginEvent event) {
         // Init!
-        Via.getManager().addEnableListener(() -> this.init(configPath.resolve("config.yml").toFile()));
+        Via.getManager().addEnableListener(() -> this.init(getDataFolder()));
     }
 
     @Override

velocity/src/main/java/com/viaversion/viabackwards/VelocityPlugin.java

@@ -53,7 +53,7 @@ public class VelocityPlugin implements ViaBackwardsPlatform {
     public void onProxyStart(ProxyInitializeEvent e) {
         // Setup Logger
         this.logger = new LoggerWrapper(loggerSlf4j);
-        Via.getManager().addEnableListener(() -> this.init(configPath.resolve("config.yml").toFile()));
+        Via.getManager().addEnableListener(() -> this.init(getDataFolder()));
     }
 
     @Override