Function track

track(id: string, elt: HTMLElement): void
Track an element by an arbitrary string id. This is essentially a global key-value store of elements you'd like to keep around.
Parameters
- id: string
  An id to track the element by. This has to be unique across your entire application.
- elt: HTMLElement
  The element to track.
Returns void
Example
```
// Create and track elements
const header = document.createElement('header');
track('main-header', header);

// Track dynamically created elements
const [sidebar] = nu('aside.sidebar').done();
track('app-sidebar', sidebar);
```
- Defined in src/dom/tracking.ts:31