Switch to kadet/keylighter for syntax highlighting

Author: AydinHassan

app/config.php

@@ -3,6 +3,7 @@
 use Colors\Color;
 use function DI\object;
 use function DI\factory;
+use Kadet\Highlighter\KeyLighter;
 use function PhpSchool\PhpWorkshop\Event\containerListener;
 use Interop\Container\ContainerInterface;
 use League\CommonMark\DocParser;
@@ -312,11 +313,15 @@ function (CgiResult $result) use ($c) {
             $c->get(Color::class),
             $c->get(TerminalInterface::class),
             $c->get(ExerciseRepository::class),
-            $c->get(SyntaxHighlighter::class),
+            $c->get(KeyLighter::class),
             $c->get(ResultRendererFactory::class)
         );
     },
 
+    KeyLighter::class => function () {
+        return new KeyLighter;
+    },
+
     'coreContributors' => [
         '@AydinHassan' => 'Aydin Hassan',
         '@mikeymike'   => 'Michael Woodward',

composer.json

@@ -30,7 +30,8 @@
         "psr/http-message": "^1.0",
         "zendframework/zend-diactoros": "^1.3.6",
         "myclabs/php-enum": "^1.4",
-        "nikic/php-parser": "^2.1"
+        "nikic/php-parser": "^2.1",
+        "kadet/keylighter": "^0.8.2"
     },
     "require-dev": {
         "composer/composer": "^1.2",