show reset button only when save server ip is not the default value

src/gui/app.rs

@@ -286,9 +286,11 @@ impl App {
                                 .desired_width(92.0),
                         );
                         ui.label("Save server IP");
+                        if self.settings.save_server_ip != Settings::default().save_server_ip {
                             if ui.button("↺").clicked() {
                                 self.settings.save_server_ip = String::from(ROCKSTAR_SAVE_SERVER);
                             }
+                        }
                     });
                 }
             })