reorganize and cleanup php server code

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

@@ -0,0 +1,20 @@
+@extends('layouts.install')
+
+@section('content')
+
+    @include('install.steps', ['steps' => ['welcome' => 'selected']])
+
+    <div class="step-content">
+        <h3>Welcome</h3>
+        <hr>
+        <p>This steps will guide you through few step installation process.</p>
+        <p>When this installation process is finished, you will be able
+            to login and manage your users immediately! </p>
+        <br>
+        <a href="{{ route('install.requirements') }}" class="btn btn-primary float-right" role="button">
+            Next
+            <i class="fa fa-arrow-right"></i>
+        </a>
+        <div class="clearfix"></div>
+    </div>
+@stop