Add 404 and 403 error pages

resources/lang/en/base.php

@@ -2,6 +2,18 @@
 
 return [
     'validation_error' => 'There was an error with one or more fields in the request.',
+    'errors' => [
+        'return' => 'Return to Previous Page',
+        'home' => 'Go Home',
+        '403' => [
+            'header' => 'Forbidden',
+            'desc' => 'You do not have permission to access this resource on this server.',
+        ],
+        '404' => [
+            'header' => 'File Not Found',
+            'desc' => 'We were unable to locate the requested resource on the server.',
+        ],
+    ],
     'index' => [
         'header' => 'Your Servers',
         'header_sub' => 'Servers you own and have access to.',