[DomCrawler] Added support for <area> tags to be treated as links
bug #10245 [DomCrawler] Added support for <area> tags to be treated as links (shamess)

This PR was merged into the 2.3 branch.

Discussion
----------

[DomCrawler] Added support for <area> tags to be treated as links

The [HTML area tag](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/area) behaves exactly like the `a` tag in that they're both clickable, and if it has a `href` follows a link. The Link class works the same with both tags.

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

23acd26 [DomCrawler] Added support for <area> tags to be treated as links