Connect CalDAV todos to DB-Items, finish todo component and add it to pipeline items

resources/views/invoice.blade.php

@@ -133,9 +133,9 @@
     <h1>Rechnung</h1>
     <h2>{{ $invoice['title'] }}</h2>
 
-    @if($invoice['text'])
+    @if($invoice['text'] && $invoice['text'] !== "<p></p>")
     <div class="text">
-        {!! nl2br(e($invoice['text'])) !!}
+        {!! $invoice['text'] !!}
     </div>
     @endif