fix config

Author: sergix44

config/nutgram.yaml

@@ -1,6 +1,6 @@
 nutgram:
   # The Telegram bot token
-  token: '%env(string:NUTGRAM_TOKEN)%'
+  token: '%env(string:TELEGRAM_TOKEN)%'
 
   # If true, the webhook mode validates the incoming IP range is from a Telegram server
   safe_mode: false

src/DependencyInjection/Configuration.php

@@ -14,9 +14,9 @@ public function getConfigTreeBuilder(): TreeBuilder
         $treeBuilder->getRootNode()
             ->children()
             ->scalarNode('token')->end()
-            ->booleanNode('safe_mode')->defaultFalse()->end()
+            ->booleanNode('safe_mode')->end()
             ->arrayNode('config')->end()
-            ->booleanNode('routes')->defaultTrue()->end()
+            ->booleanNode('routes')->end()
             ->end()
             ->end();