Menu Items: Icons, Grouping, Ordering and Badges

Commits for this lesson:

• Groups: https://github.com/LaravelDaily/Laravel-Filament-Admin-Course/commit/2f60ec09df6315b8c40027817efc6838e9d4c5de
• Icons: https://github.com/LaravelDaily/Laravel-Filament-Admin-Course/commit/458926eda8c9830eeb3432cb6ed53cc3de5b104d
• Ordering: https://github.com/LaravelDaily/Laravel-Filament-Admin-Course/commit/34d741af631f29b35e9e166fa98ebc699c7440f8
• Badges: https://github.com/LaravelDaily/Laravel-Filament-Admin-Course/commit/fe31f3e263a77cca7ea83e38c9a4fc56e8acfbde