fix(anchor): ignore anchor hash when parsing internal link syntax

[kevinports]

	Fix RM-2485

There's a bug with our internal link feature where if you pass a url hash of non-unicode characters as an anchor link, the href doesn't get parsed in the Anchor component.

Here's an example: https://busted-links.readme.io/docs/intercom-3

🧰 Changes

• Ignore anchor hash when parsing internal link syntax that generates a link's path, and append the hash to the path string separately.

🧬 QA & Testing

• Broken on production.
• Working in this PR app.