l10n: updated Swedish (sv)
l10n: updated Swedish (sv)

contributors:
  Jonas Franzén

updated from:
  repo: https://github.com/freedomofpress/securedrop-i18n
  revision: 75d090c303ed9827cb5fd0eb647f322b56d5d707

conorsch/securedrop,conorsch/securedrop,conorsch/securedrop,conorsch/securedrop,conorsch/securedrop