<!-- Please make sure you have read the submission guidelines before
posting an PR -->
<!--
https://github.com/nrwl/nx/blob/master/CONTRIBUTING.md#-submitting-a-pr
-->
<!-- Please make sure that your commit message follows our format -->
<!-- Example: `fix(nx): must begin with lowercase` -->
<!-- If this is a particularly complex change or feature addition, you
can request a dedicated Nx release for this pull request branch. Mention
someone from the Nx team or the `@nrwl/nx-pipelines-reviewers` and they
will confirm if the PR warrants its own release for testing purposes,
and generate it for you if appropriate. -->
## Current Behavior
Index pages read from the map.json description which is missing for a
lot of entries.
<img width="853" alt="image"
src="https://github.com/user-attachments/assets/8c0db9a2-d293-482d-8597-647cda47cc93"
/>
## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->
The new logic
- checks the corresponding markdown file `description` property which is
also used for the HTML meta description tags
- falls back to the `map.json` description
<img width="809" alt="image"
src="https://github.com/user-attachments/assets/716358f0-bab9-4bd4-97b2-b31fa151ebe0"
/>
## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->
Fixes #
6bc4ef47ec