Made it possible to sign up for events.

Added fail and success messages when signing up.
Fixed unique keys in migrate

skolehjem/resources/views/app/events/index.blade.php

@@ -9,10 +9,14 @@
         <h1 class="text-center sde-blue mb-0">Aktiviteter</h1>
         @if(!$events->isEmpty())
             @foreach($events as $event)
-                <form method="post" action="{{ route("userevents.update", ['user' => Auth::user()], ['event' => $event->id]) }}">
+                <form method="get" action="{{ route("userevents.create") }}">
                     <h3 class="sde-blue bold text-center mb-0">{{$event->name}}</h3>
                     <p class="text-center mt-0">{{$event->date}}</p>
                     <p class="text-center">{{$event->description}}</p>
+                    <input type="hidden" name="user_id" value="{{ Auth::user()->id }}">
+                    <input type="hidden" name="event_id" value="{{ $event->id }}">
+                    {!! session()->get('error#' . $event->id) !!}
+                    {!! session()->get('signup#' . $event->id) !!}
                     <button type="submit" class="btn text-center btn-sde-blue" id="tilmeld">Tilmeld</button>
                 </form>
             @endforeach