fix: rename unused ctx params to _ctx, remove unused imports

- Fix 17 unused ctx params in module-builder, verbandsverwaltung, sitzungsprotokolle actions
- Remove unused CardDescription/CardHeader/CardTitle from pricing calculator
- Remove unused FileSignature import from layout

apps/web/app/[locale]/home/[account]/layout.tsx

@@ -11,7 +11,6 @@ import {
   BookOpen,
   ShieldCheck,
   Trophy,
-  FileSignature,
   ScrollText,
   ListChecks,
   BookMarked,