Fix tracked-controls.controller undefined on controllerconnected after reconnect

[vincentfretin]

When a controller disconnects and reconnects, el.components['tracked-controls'].controller is undefined at the time the controllerconnected event fires, producing an error can't access gamepad on undefined on the haptics component at https://github.com/supermedium/superframe/blob/7439b2f77ade516077e8edfc41991ee0fc9d07a9/components/haptics/index.js#L31 so losing the vibrations when you put both controllers on the ground and picking them up again.

Root cause: The specific controller component (e.g. meta-touch-controls) registers its controllersupdated listener before tracked-controls' listener (because tracked-controls is created later during injectTrackedControls). On reconnect:

1. The specific controller's controllersupdated handler fires first
2. It calls checkControllerPresentAndSetup → injectTrackedControls → setAttribute('tracked-controls', ...) with unchanged data
3. A-Frame skips update()/updateController() because the data hasn't changed
4. controllerconnected is emitted with tracked-controls.controller still undefined
5. tracked-controls' own controllersupdated listener fires after, but too late

Fix: In checkControllerPresentAndSetup, explicitly call trackedControls.updateController() before emitting controllerconnected. The check is skipped on first connect (tracked-controls doesn't exist yet) to avoid a redundant call.