remove loads of styles in favor of inline styles

pages/admin/bookings/[uuid]/bill.tsx

@@ -138,7 +138,7 @@ export default function BookingBillPage({
       <Header />
       <main className="main">
         {booking && (
-          <form className="form" onSubmit={onSubmit}>
+          <form className="w-full" onSubmit={onSubmit}>
             <div>
               <strong>Buchungszeitraum:</strong>{' '}
               {daysFormatFrontend(booking.days)}