Extending `closeDropdown()` utility

[michaelgatuma]

https://github.com/finsweet/ts-utils/blob/master/src/webflow/closeDropdown.ts

I think this utility closeDropdown() can be extended further to allow triggering w-open functionality also, I tested it and it worked...could be a great addition. What do you think @alexiglesias93?

[alexiglesias93]

It's a good idea but I would create a separate function for that called toggleDropdown, otherwise this would be a breaking change.
PR contributions are welcome!