Using new version of Font Awesome Fre 6.5.2

[brocasm]

Just swap old version (5.15.3) by new one (6.5.2)

Testing test app without problem, no more testing.

Now we have all newest icons available.

[brocasm]

@farridav can you approve or comment this pull request ?
What can i do better ?

[farridav]

Makes sense

[Huge]

I'd update the Readme accordingly, but the v6 icons in the side-bar/menu act really weird in my case.
- the icons applied to users and groups, but fail to display on all other model admin items.

My settings:

single_uniform_icon = "fab fa-microsoft"

# Jazzmin Settings
JAZZMIN_SETTINGS = {
    "dark_mode_theme": "darkly",  # Ensure dark mode theme is set
    "default_icon_children": single_uniform_icon,
    "default_icon_parent": single_uniform_icon,
    "icons": {
        # "auth": "fas fa-users-cog",
        "auth.user": single_uniform_icon, # default was "fas fa-user" and "fas fa-users", gets back if this gets removed..
        "auth.Group": single_uniform_icon,
    },
      #...
    ```