fix: adding catch for logged out user in adding items to cart
fix: cart access queries
feat: add2cart front end scripts
feat: cart page
fix: catalog empty search bar catch
feat: cart stylings

fix: quantity editor styling
feat: quantity editor script
feat: quantity editor on make-purchase.php

feat!: clicking an item from catalog redirect to make-purchase.php
feat: item_query.php
fix(catalog.js): inner html of items, deleting unnecessary function
fix: request method of item
feat: db+mock sql schema
fix: specifying navbar style
fix!: restyling login page
fix!: catalog display as grid
feat!: make-purchase styling

readme: adding pembagian tugas

feat: sale, authentications

See merge request if3110-2023-01-i/tugas-besar-1!7

refactor: deleting unused codes, and moving navbar.php to prototype
refactor: prototype directory typo

Merge branch 'dev' of https://gitlab.informatika.org/if3110-2023-01-i/tugas-besar-1 into feat/saleandcart

feat: sell items

feat: image preview and front end on make sale

fix: make-sale.css bug
fix: padding in cart.css
fix: login href to catalog
fix: make-sale styling

fix: cart undefined function
feat: navbar hrefs
fix: navbar css bugs

Merge branch 'dev' of https://gitlab.informatika.org/if3110-2023-01-i/tugas-besar-1 into feat/saleandcart

fix: generalizing logged out catch

feat: base sidebar done

See merge request if3110-2023-01-i/tugas-besar-1!6