reorganize and cleanup php server code

server/resources/views/install/complete.blade.php

@@ -0,0 +1,32 @@
+@extends('layouts.install')
+
+@section('content')
+
+    @include('install.steps', ['steps' => [
+        'welcome' => 'selected done',
+        'requirements' => 'selected done',
+        'permissions' => 'selected done',
+        'database' => 'selected done',
+        'installation' => 'selected done',
+        'complete' => 'selected'
+    ]])
+
+    <div class="step-content">
+        <h3>Complete!</h3>
+        <hr>
+        <p><strong>Well Done!</strong></p>
+        <p>You application is now successfully installed! You can login by clicking on "Log In" button below.</p>
+
+        @if (is_writable(base_path()))
+            <p><strong>Important!</strong> Since your root directory is still writable,
+            you can change the permissions to 755 to make it writable only by root user.</p>
+        @endif
+
+        <a class="btn btn-primary float-right" href="{{ url('login') }}">
+            <i class="fa fa-sign-in"></i>
+            Log In
+        </a>
+        <div class="clearfix"></div>
+    </div>
+
+@stop