Fix og:image for `Icons`component page

[fmerian]

Both og:image and og:description doesn't display properly because of the wrapped text in []().

Two options:

1. Remove the []()
2. Define tags in the page’s metadata

From a DX perspective, I'd opt for Option 2 to keep the direct link to Font Awesome.

Source: https://dub.co/tools/metatags?url=https://mintlify.com/docs/content/components/icons