feat: Add webmention counts and icons for replies, likes, and reposts.

- Add new SVG icons for the "reply", "like", and "repost" actions
- Update webmention info display in note template to include counts and icons for replies, likes, and reposts
- Add webmention counts to FrontPageController.php and modify queries in NotesController.php
- Modify WebMentionsTableSeeder.php to change URLs, commentable ID, and add new WebMentions

resources/css/app.css

@@ -4,3 +4,4 @@
 @import url('colours.css');
 @import url('code.css');
 @import url('content.css');
+@import url('notes.css');