Build header for customers when creating projects and correct link to invoices.

resources/views/projects/show.blade.php

@@ -76,7 +76,7 @@
                             @foreach($project->invoices as $invoice)
                                 <details class="even:bg-gray-100 odd:bg-white hover:bg-gray-400">
                                     <summary class="cursor-pointer flex flex-row w-full"
-                                             @click="window.location.href='/invoice/' + invoice.id;">
+                                             onclick="window.location.href='/invoice/{{ $invoice->id }}'">
                                         <div class="w-1/6">{{ $invoice->number }}</div>
                                         <div class="w-1/3">{{ $invoice->customer->name }}</div>
                                         <div class="w-1/4">{{ $invoice->address->name }}</div>