Read Captcha Settings From ENV (#1130)

* Read Captcha Settings From ENV

* Update captcha.php

config/captcha.php

@@ -7,17 +7,17 @@
  * Don't edit this file directly, add the section to your config.php
  */
 return [
-    'enabled' => false,
-    'sitekey' => '',
-    'secret'  => '',
+    'enabled' => env('CAPTCHA_ENABLED', 'false'),
+    'sitekey' => env('CAPTCHA_SITEKEY', ''),
+    'secret'  => env('CAPTCHA_SECRET', ''),
 
     // Attributes can be found here:
     // https://developers.google.com/recaptcha/docs/display#render_param
     'attributes' => [
-        'data-theme' => 'light',
+        'data-theme' => env('CAPTCHA_DATATHEME', 'light'),
     ],
 
     'options' => [
-        'timeout' => 2.0,
+        'timeout' => env('CAPTCHA_TIMEOUT', '2.0'),
     ],
 ];