add filter function

See merge request if3110-2022-k01-01-52/tugas-besar-1!5

13520145 feature listalbum addalbumsong

See merge request if3110-2022-k01-01-52/tugas-besar-1!4

13520145 feature listalbum addalbumsong

See merge request if3110-2022-k01-01-52/tugas-besar-1!3

# Conflicts:
#   assets/js/script.js
#   templates/side-navbar-admin-menu.html
#   templates/side-navbar.html

13519145 feature login register

See merge request if3110-2022-k01-01-52/tugas-besar-1!2

# Conflicts:
#   assets/js/script.js