Internal links RSS feed remain <saber-link> #246

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Bug report

It appears as internal links in feeds aren't compiled to a-tags.

See https://saber-blog-starter.netlify.com/atom.xml

Version

Saber 0.6.7

info Direct dependencies ├─ prismjs@1.16.0 ├─ saber-highlight-css@0.0.3 ├─ saber-plugin-feed@0.3.2 ├─ saber-plugin-google-analytics@0.0.6 ├─ saber-plugin-prismjs@0.2.1 ├─ saber-plugin-pwa@0.3.3 ├─ saber-plugin-query-posts@0.3.2 ├─ saber-plugin-sitemap@0.2.0 ├─ saber-theme-minima@3.0.1 └─ saber@0.6.7

Steps to reproduce

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Code can be found on https://github.com/spekulatius/saber-blog-starter - current master branch.

What is expected?

A valid HTML a-tag, so that people can click on internal links and still get to the intended target.

What is actually happening?

Links like this

<saber-link :to="$saber.getPageLink(&quot;./index.md&quot;, &quot;&quot;)">Back Home</saber-link>

remain in the output

Other relevant information

• Result of running saber -v: saber/0.6.7 linux-x64 node-v8.10.0
• Browser version (optional): FF 67.0
• Is Saber a global or local install? locally
• Which package manager did you use for the install? yarn
• Does this issue occur when all plugins are disabled? -