Introduced new settings for JWT secret and its description to the JWT authentication plugin. The settings allow administrators to configure a secret key used for signing JWT tokens.
Also updated the plugin version to ensure proper synchronization with these changes.
Addresses setup requirements for heightened JWT security.
Rebranded the auth_userkey plugin to auth_jwt, including changes to namespace, class names, and configuration settings to reflect the new jwt-based authentication mechanism. Updated copyright notices and contact information accordingly. This refactoring also includes the introduction of JWT token management using the Firebase JWT library, replacing the user quick keys.
