Changelog

- fixed: Added Font Awesome styles to _app.js instead of auto import

- update: Updated to Bootstrap 5
- new: Converted from ReactStrap to React Bootstrap package (see docs here)
- new: Font Awesome React component (see usage here)
- new: Header component is split to multiple components for better readiblity (src/components/Header)
- updated packages: NPM update, Next.js (12.0.0), Swiper (7.0.6), Sass 1.38.1
- improved: Removed Swiper react wrapper (ReactIdSwiper). Using Swiper.js's react component