Fixing the page of disk decryption before login page in pureos

Hi, i was experimenting with the C language libraries and i deleted libglib2.0-0 by mistake to try reinstalling it, then i made sudo apt autoremove so i deleted lots of its related packages. This caused the gnome environment and shell to be deleted and i rebooted to the terminal.

I managed to connect to the wired internet via the terminal without the GUI and i installed all the missing packages. Now i have gnome back again but i lost the decryption page that comes before the login page. Also i lost the pureos animated logo.

Any ideas how can reinstall those things ?

Note that i installed all the packages under sudo apt install pureos-*.