Version 1.0.0

I've bumped the major version since I've removed the
Gnome settings variable and changed the role behavior
to always apply settings.

In this version I've also fixed the Gnome switcher
extension settings, which were not working as expected
(more info in the commit message for the fix). Still
on the topic of extensions, I've added a task to
enable them, since the default on both OS is to
install but leave them disabled.

Lastly, the old Molecule setup that tested both OS
(Arch Linux and Ubuntu) was removed in favor of
using env vars. I'm using this to enable parallel
testing on GitLab automated workflows. The env var
change is also described on README.md

Add tasks for Ubuntu installs

Add Molecule tests

This version has added Molecule tests, you
can test the role locally by following the
instructions in the readme section.

First tagged release

This is the first release of this role
for people who like to use version pinning
in their requirements file.