Add previous dives to session data

    <div style="display : flex; flex-direction: row">

        <div style="width: 50%; margin-right: 50px; height: 100%; display:flex; align-items: center; flex-direction: column">

            @if(isset($precedent))

                <img src="{{ asset('/images/Diver1.png') }}" alt="Diver illustration">

            @else

                <p>Plongées crées</p>

                <table>

                    <tr>

                        <th>Date et heure</th>

                        <th>Nombre maximum d'inscrits</th>

                        <th>Site</th>

                        <th>Niveau requis</th>

                    </tr>

                    @foreach ($precedent as $dive)

                        <tr>

                            <td>{{ $dive->DS_DATE }}</td>

                            <td>{{ $dive->DS_MAX_DIVERS }}</td>

                            <td>{{ $dive->DL_NAME }}</td>

                            <td>{{ $dive->PRE_CODE }}</td>

                        </tr>

                    @endforeach

                </table>

            @endif

        </div>

        <form action="/create/dive" method="POST" style="width: 70%;font-size: 20px;">

            @csrf

    ->post('/create/dive', function(Request $request)

{

    $pre = DiveSessionCreation::add($request);

    $previousDives = session('previousDives', []);

    $previousDives[] = $pre;

    session(['previousDives' => $previousDives]);

    return view('create_dive',  ['locations' => DivingLocation::all(),  'boats' => Boat::all(), 'levels' => Prerogative::all(), 'users' => User::all(), 'precedent' => $pre]);

});