refactor comment system into comments plugin

public/site/plugins/comments/routes/delete.php

@@ -0,0 +1,25 @@
+<?php
+
+return [
+  'pattern' => '(:all)delete-comment.json',
+  'method' => 'POST',
+  'action'  => function () {
+      $json = file_get_contents('php://input');
+      $data = json_decode($json);
+
+      $page = page($data->pageUri);
+      $file = $page->file($data->fileName);
+      $user = kirby()->user($data->userUuid);
+
+
+      $comments = $file->comments()->isEmpty() == true ? [] : Yaml::decode($file->comments()->value());
+
+      unset($comments[$data->id] );
+      
+      $newFile = $file->update([
+        'comments' => $comments
+      ]);
+
+      return getFileData($newFile);
+  }
+];