Add Outdated badge to `hydrogen` & `glacier-darkula-ui`

[confused-Techie]

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Description of the Change

This PR adds the outdated badges to the above packages, while also adding the docs for what the outdated badge means, and how it can be removed.

The listing in Admin Actions here, would be the location the link of the badge points to, so contains full instructions for the end users on how to install the proper version of the package. As well as the full reasoning of why this was added.

[Daeraxa]

Looks good, we might also want to demote it from the featured packages with this change? Seems weird to publicise a package we deem outdated.

[confused-Techie]

Yeah I'll remove it first from featured packages, thanks for thinking of that, would be a little awkward @Daeraxa