app: grouped routes for contact feature

Related to #615

Author: joshi1983

app/routes/contact.php

@@ -1,3 +1,6 @@
 <?php
-Route::get('contact', 'ContactController@index');
-Route::post('contact', 'ContactController@sendMessage');
+
+Route::group(['prefix' => 'contact'], function () {
+    Route::get('/', 'ContactController@index');
+    Route::post('/', 'ContactController@sendMessage');
+});