Function removeChildSignal

removeChildSignal<T>(items: WritableSignal<T[] | null>, child: T): void
Update the given items signal reference with the given child removed.
- Compares reference for removing.
- Uses Array#filter to update.
Type Parameters
- T
Parameters
- items: WritableSignal<T[] | null>
  signal reference
- child: T
  to remove
Returns void