Delist Firewall setup on systems with Firewalld installed, such as fedora

[Angxddeep]

Type of Change

• Bug Fix

Description

As Fedora comes with Firewalld preinstalled & preconfigured with rules set for fedora desktop out of the box. Installing ufw on it might conflict with it & is really not needed.

Testing

I have tested it

Impact

Hides firewall setup on fedora systems

Checklist

• My code adheres to the coding and style guidelines of the project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no errors/warnings/merge conflicts.

[lj3954]

This is not a refactor, it's a bugfix. The title also should be modified since my proposed changes make this PR delist firewall setup on any system with firewalld installed, with no relevance to the distro.