Feature/panel user

[bezhanSalleh]

No description provided.

[what-the-diff]

PR Summary

• New Configuration Setting in config/filament-shield.php
  A new configuration setting was added which allows enabling and naming the panel_user feature.

• Enhancement to createRole Method in src/FilamentShield.php
  The method to create roles in the filament shield file was modified. It now accepts an optional parameter for naming the role.

• New Utility Methods in src/Support/Utils.php
  New utility methods were added that handle panel_user role-related functionalities. These methods can check if the panel_user role is enabled, get its name, and create the role if it's enabled.

• Addition of src/Traits/HasPanelShield.php
  A new trait file was introduced, providing panel-related functionality to a model. This includes methods for initiating the panel shield, assigning, and removing roles, and verifying a user's access to the panel.