sv-SE translation: Set up language preferences across all swedish files.
sv-SE translation: 'Anteckningar för instruktörerna' is better than 'Anteckningar för klubbledaren'.
sv-SE translation: 'Uppgifter' is better than 'Project' and 'Projects', due to plural not being implied by number of projects.
sv-SE translation: change breadcrumbs to be in swedish.
sv-SE translation: fixed 'Step 4' -> 'Steg 4' missed translations.