Started playing with prosemirror

- Got base setup together with WYSIWYG/Markdown switching, where HTML is
  the base content format.
- Added some testing routes/views for initial development.
- Added some dev npm tasks to support editor-specific actions.

resources/views/editor-test.blade.php

@@ -0,0 +1,34 @@
+@extends('layouts.simple')
+
+@section('head')
+    <link rel=stylesheet href="https://prosemirror.net/css/editor.css">
+@endsection
+
+@section('body')
+    <div class="container">
+
+        <div>
+            <input id="markdown-toggle" type="checkbox">
+        </div>
+
+        <div id=editor style="margin-bottom: 23px"></div>
+
+        <div id="content" style="display: none;">
+            <h2>This is an editable block</h2>
+            <p>Lorem ipsum dolor sit amet, <strong>consectetur adipisicing</strong> elit. Asperiores?</p>
+            <p><img src="/user_avatar.png" alt="Logo"></p>
+            <ul>
+                <li>Item A</li>
+                <li>Item B</li>
+                <li>Item C</li>
+            </ul>
+            <p>Lorem ipsum dolor sit amet.</p>
+        </div>
+
+    </div>
+@endsection
+
+
+@section('scripts')
+    <script src="{{ versioned_asset('dist/editor.js') }}" nonce="{{ $cspNonce }}"></script>
+@stop