Plugins landing page shows old plugin descriptions

## Expected Behavior

The plug-in descriptions at https://www.dita-ot.org/plugins should show the contents of the latest plugin version in the registry _(like the individual plugin pages do)_.

For example, the [description](https://github.com/dita-ot/registry/blob/master/net.infotexture.dita-bootstrap.extension.json#L24) line for the latest version of [net.infotexture.dita-bootstrap.extension](https://www.dita-ot.org/plugins/net.infotexture.dita-bootstrap.extension) is:

> Bootstrap extension 5.3.1 for DITA Bootstrap 5.3.5

## Actual Behavior

The overview page at https://www.dita-ot.org/plugins seems to grab the `description` content from the [first entry](https://github.com/dita-ot/registry/blob/master/net.infotexture.dita-bootstrap.extension.json#L4) in the plug-in's JSON file _(instead of the latest plugin version)_.

> Bootstrap extension 5.3.0 for DITA Bootstrap 5.3.4

Compare the overview page at https://www.dita-ot.org/plugins with an individual plugin page, then inspect the linked registry JSON entries for net.infotexture.dita-bootstrap.extension. Trace how the landing page selects a version description; done means the overview shows the latest registry entry, matching the individual plugin page.

Written by the indexing model from the issue text.