Update Swedish translation. (#9764)

- Database terminology corrections (bord → tabell, Visa → Vy, etc.)
- Standardize Tabellrymd, Sammansatt utlösare
- Fix punctuation in placeholder lists (Oxford-comma alignment)
- Drop incorrect fuzzy flag from .po header

Note: msgid "on" (from ai_tools.js) is missing here because the PR's
.po was regenerated against a slightly older source tree; it will be
re-added on the next `make messages` run.

Author: Daniel Nylander