Update MDN documentation

lib/docs/filters/dom/entries.rb

@@ -26,6 +26,7 @@ module Docs
         'Geometry'            => 'Geometry',
         'High Resolution Time' => 'Performance',
         'Intersection'        => 'Intersection Observer',
+        'Media Capabilities'  => 'Media',
         'Media Capture'       => 'Media',
         'Media Session'       => 'Media',
         'Media Source'        => 'Media',
@@ -99,6 +100,7 @@ module Docs
         'MediaSession'        => 'Media Session',
         'MediaTrack'          => 'Media Streams',
         'Message'             => 'Channel Messaging',
+        'Mutation'            => 'DOM',
         'NamedNode'           => 'Nodes',
         'Node'                => 'Nodes',
         'Notification'        => 'Notification',
@@ -116,6 +118,7 @@ module Docs
         'Shadow'              => 'Shadow DOM',
         'StaticRange'         => 'Range',
         'Streams'             => 'Media Streams',
+        'StyleProperty'       => 'CSS',
         'StyleSheet'          => 'CSS',
         'Stylesheet'          => 'CSS',
         'SVG'                 => 'SVG',