fix: dismiss overflow dropdown on anchor click

[dstaley]

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Description

This extends the behavior added in #426 to the MenuItemsOverflow component, which is used on mobile devices.

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Latest commit: b51d0cf

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@hashicorp/react-subnav	Minor

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[alexcarpenter]

👍🏼

[alexcarpenter]

@dstaley I think I found a bug where menus are not closing on click. In the use case that we pass a next/link to the link prop in subnav. event.target.tagName is not equal to 'A'?

import Link from 'next/link'

<Subnav Link={Link} />

[dstaley]

Hmm, I'm not seeing that behavior on the terraform-website-next site.

It might be a better idea for us to use a router hook and listen for navigation events rather than detecting clicks.

[alexcarpenter]

@dstaley Check out this preview here https://cloud-hashicorp-com-msy3mvgid-hashicorp.vercel.app/products/vault

Toggle between products in the primary nav.