Login page visual changes applied.
Dark mode enabled
Navbar color updated
Extensions can have required minimum version.

Certificate names converted to lowercase for better control.

Fix for #LMYS-12

New extension name support added inside extension navigations.

Extension icons can have full font awesome class names if they start with 'fa' tag.

-Liman permissions added to Role mapping
-Restricted mode interface added
-Configuration file fixes
-Better restrict mode redirection.
-Language change support added to restricted mode.

Last .env config files moved under liman configuration file.