feat: Add NeoPattern example and update API server functionality

- Add new NeoPattern example with pattern-based LED control
- Update ApiServer with enhanced functionality
- Modify neopixel example
- Update platformio configuration

src/ApiServer.cpp

@@ -365,6 +365,9 @@ void ApiServer::onCapabilitiesRequest(AsyncWebServerRequest *request) {
                         allowed.add(v);
                     }
                 }
+                if (ps.defaultValue.length() > 0) {
+                    p["default"] = ps.defaultValue;
+                }
             }
         }
     }