feat(SW-644): add book parking button

i18n/dictionaries/de.json

@@ -8,6 +8,7 @@
   "ALLG": "Allergie",
   "About accessibility": "Über Barrierefreiheit",
   "About meetings & conferences": "About meetings & conferences",
+  "About parking": "Über das Parken",
   "About the hotel": "Über das Hotel",
   "Accept new price": "Neuen Preis akzeptieren",
   "Accessibility": "Zugänglichkeit",
@@ -47,6 +48,7 @@
   "Bed type": "Bettentyp",
   "Birth date": "Geburtsdatum",
   "Book": "Buchen",
+  "Book parking": "Parkplatz buchen",
   "Book reward night": "Bonusnacht buchen",
   "Booking number": "Buchungsnummer",
   "Breakfast": "Frühstück",