Ta bort röd ram på skapa konto

Removed the red border from the Create account button in AccountMenu.tsx by dropping the inline border style, while preserving hover/focus red translucent background.

X-Lovable-Edit-ID: edt-6b15ec75-aedf-4285-b7ae-13f170f9e673

src/components/AccountMenu.tsx

@@ -62,7 +62,6 @@ const AccountMenu = () => {
                 <button
                   onClick={() => handleOpenAuth("signup")}
                   className="w-full px-3 py-2 text-left font-bold rounded-md hover:bg-[rgba(220,38,38,0.3)] focus:bg-[rgba(220,38,38,0.3)] transition-colors"
-                  style={{ border: '2px solid #dc2626' }}
                 >
                   Skapa konto
                 </button>