Rewrite installer without 3rd party installer lib.

resources/views/layouts/default/app.blade.php

@@ -42,8 +42,7 @@
                 </a>
             </p>
         </div>
-        <div class="collapse navbar-collapse justify-content-end" id="navigation"
-             data-nav-image="/assets/frontend/img/blurred-image-1.jpg">
+        <div class="collapse navbar-collapse justify-content-end" id="navigation">
             <ul class="navbar-nav">
                 {{--<li class="nav-item active">--}}
                 @if(!Auth::user())

resources/views/layouts/default/flash/message.blade.php

@@ -0,0 +1,24 @@
+@if (session()->has('flash_notification.message'))
+    @if (session()->has('flash_notification.overlay'))
+        @include('flash::modal', [
+            'modalClass' => 'flash-modal',
+            'title'      => session('flash_notification.title'),
+            'body'       => session('flash_notification.message')
+        ])
+    @else
+        <div class="alert
+                    alert-{{ session('flash_notification.level') }}
+                    {{ session()->has('flash_notification.important') ? 'alert-important' : '' }}"
+        >
+            @if(session()->has('flash_notification.important'))
+                <button type="button"
+                        class="close"
+                        data-dismiss="alert"
+                        aria-hidden="true"
+                >&times;</button>
+            @endif
+
+            {!! session('flash_notification.message') !!}
+        </div>
+    @endif
+@endif

resources/views/layouts/default/flash/modal.blade.php

@@ -0,0 +1,19 @@
+<div id="flash-overlay-modal" class="modal fade {{ $modalClass or '' }}">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
+
+                <h4 class="modal-title">{{ $title }}</h4>
+            </div>
+
+            <div class="modal-body">
+                <p>{!! $body !!}</p>
+            </div>
+
+            <div class="modal-footer">
+                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
+            </div>
+        </div>
+    </div>
+</div>