feat: search

See merge request if3110-2023-01-18/tugas-besar-1!5

# Conflicts:
#   app/Controllers/EventController.php
#   app/Controllers/PembelianController.php
#   app/Controllers/TicketController.php
#   app/Models/Event.php
#   db/data.php
#   db/init.sql
#   home.php
#   index.php

Feat/pembelian

See merge request if3110-2023-01-18/tugas-besar-1!4

Fe

See merge request if3110-2023-01-18/tugas-besar-1!3

Feat/pagination

See merge request if3110-2023-01-18/tugas-besar-1!2

Feat/authentication backend

See merge request if3110-2023-01-18/tugas-besar-1!1