fix(registratura): disable horizontal scroll on detail sheet ScrollArea

Radix ScrollArea Viewport allows horizontal scroll by default, causing
NAS attachment cards to extend beyond the sheet edge. Override viewport
overflow-x to hidden and move px-6 padding inside the content div so
the viewport constrains content width properly.

src/modules/registratura/components/registry-entry-detail.tsx

@@ -218,8 +218,8 @@ export function RegistryEntryDetail({
 
         <Separator className="mt-4" />
 
-        <ScrollArea className="flex-1 px-6">
-          <div className="space-y-5 py-4 overflow-hidden">
+        <ScrollArea className="flex-1 [&>[data-slot=scroll-area-viewport]]:!overflow-x-hidden">
+          <div className="space-y-5 py-4 px-6">
             {/* ── Status row ── */}
             <div className="flex flex-wrap gap-2">
               <Badge className={cn("text-xs px-2.5 py-0.5", dir.class)}>