Fixes#10878. The Search Plugin displays a link within the search
results collection that points to the underlying document that is
related to that result. The href used, however, was not accounting for
any `basePath` provided to the `next.config.js`, leading to a 404 if
using a custom base path. The fix is to use the `Link` component from
`next/link` instead of an anchor tag directly. This will automatically
inject the the base path into the href before rendering it.
This PR also brings back the `CopyToClipboard` component. This makes it
easy for the user to copy the href instead of navigating to it.
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Co-authored-by: Jacob Fletcher <jacobsfletch@gmail.com>