Improve the CLI output when the plugin is already present in the directory

### What feature do you want to see added?

Currently, during the verbose, we cannot get any kind of logs that show whether the plugin is already present in the directory or not.

**Current Scenario:**
See in this comment: https://github.com/jenkinsci/plugin-installation-manager-tool/issues/610#issuecomment-1806793829

**Excepted Behaviour:**
The verbose should tell the plugin is already present or not in the directory. If the version is different still shows the plugin is already present with this version

Start by tracing the CLI's verbose output handling for plugin presence, using the linked issue comment's current scenario as context. Done means verbose output states whether the plugin is already present and reports its installed version, including when that version differs.

Written by the indexing model from the issue text.