Add my noctalia setup config

noctalia/plugins/polkit-agent/README.md

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+# Polkit Agent
+
+This plugin provides a Polkit authentication agent for Noctalia. It allows you to authenticate actions that require elevated privileges directly within the shell.
+
+![Preview](preview.png)
+
+## Important
+
+To use this plugin, you **must disable or uninstall your existing polkit authentication agent** (e.g., `polkit-gnome`, `polkit-kde-agent`, `lxpolkit`, etc).
+
+Having multiple polkit agents running simultaneously will cause conflicts and prevent this plugin from working correctly.
+
+> You may need to **restart your session or computer** after enabling this plugin for the changes to take effect and for the new agent to be registered properly.