Fix account-nav feedback, blog filter position, and small icon polish

- Remove Merkliste from AccountNav — the Navbar's own wishlist icon already covers it, a second nav entry was redundant.
- Fix duplicate "Mein Profil" heading (ProfileForm already renders its own; KontoShell no longer adds a second one).
- "Eingeloggt als ..." now renders once in KontoShell, consistently on every /konto/* page, instead of only on the orders page.
- Blog category filter chips moved into the hero's own text column (was a separate bar below the entire hero including the photo) — visible immediately on every width instead of requiring a scroll past the hero image first.
- ArrowRightIcon's arrowhead wings shortened (looked like a generic oversized chevron at full length).
- Search overlay's "Esc" text button replaced with an X icon; the actual Escape keyboard shortcut is unchanged.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/konto/bestellungen/page.tsx

@@ -59,14 +59,11 @@ export default async function KontoBestellungenPage({
   ]);
 
   return (
-    <KontoShell>
+    <KontoShell customer={session.customer}>
       <Reveal className="flex flex-col gap-6 items-start w-full">
           <p className="font-semibold text-h-feature text-text-primary" style={{ fontFamily: "var(--font-lora)" }}>
             Meine Bestellungen
           </p>
-          <p className="text-body text-text-muted">
-            Eingeloggt als {session.customer.email} (Kundennummer {session.customer.customerNumber})
-          </p>
 
           {orderFilterEnabled && availableYears.length > 0 && (
             <Suspense fallback={null}>