fix(SW-3691): Setup one prettier config for whole repo
* Setup prettierrc in root and remove other configs
Approved-by: Joakim Jäderberg
Approved-by: Linus Flood
chore(SW-3246): Moved Alert component into design system
* chore(SW-3246): Moved Alert component into design system
* chore(SW-3246): Optimsed code and imports
* chore(SW-3246): Moved type AlertTypeEnum and other to common package
Approved-by: Anton Gunnarsson