Use header and main tags for better a11y
Use header and main tags for better a11y

Using NVDA, header and main tags define separate landmarks. Divs don't
hold any semantic value, and are not as accessible.

MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/kjaer.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/kjaermaxi.me,MaximeKjaer/kjaer.io,MaximeKjaer/kjaer.io,MaximeKjaer/MaximeKjaer.github.io