wip: add default language configuration

Author: athphane

config/config.php

@@ -50,6 +50,8 @@
 
     'should_translate' => false,
 
+    'default_language' => 'en',
+
     'use_default_view_for' => [],
 
     'views_folder' => 'post_type'

src/Cms.php

@@ -28,7 +28,9 @@ public function registerPostTypes($postTypes): void
             $name = Str::title(str_replace('-', ' ', $slug));
             $type->name = $data['name'] ?? $name;
             $type->singular_name = $data['name_singular'] ?? Str::singular($data['name'] ?? $name);
-            if (config('cms.should_translate')) $type->lang = Languages::default();
+            if (config('cms.should_translate')) {
+                $type->lang = config('cms.default_language');
+            }
 
             $type->slug = $slug;
             $type->icon = $data['icon'];