Admin/Public UI upgrades

This pull request focuses on fixing a bug in the ui.php file related to the project logo URL. The fix updates the usage of the project logo URL to utilize the asset helper function, ensuring better flexibility and maintainability.

Using the asset helper function, the project logo URL can adapt more seamlessly to changes in the asset path or CDN configurations, providing flexibility for future modifications.

Additionally, this pull request includes several other changes:

• theme-tabler.php: Updates the auth_layout value from 'default' to 'cover' for a more visually appealing login page layout.
• cover.blade.php: Adds a new blade template cover.blade.php to display a login page with a cover image background.
• register/cover.blade.php: Adds a new cover template for the registration page.
• custom.php: Enables permissionsManager to render its user page.
• Updates column headers of a table and adds titles to respective icons.
• redbeard.js: Fixes event binding for radio button change to ensure correct behavior.
• overrides.css: Adds loading-container class to improve styling and positioning of the loading overlay.
• Adds loading.svg file for the loading animation.
• home.blade.php: Updates loading div to use loading-container class and adds loading SVG image for a better loading experience.