[COMPONENTS][Conversation] Conversation entity moved to respective component, URI column added

Route for conversation added and Conversation Controller created.

[CONTROLLER][Conversation] Created ConversationShow function, will be used to render the conversation route page

[ENTITY][Note] Conversation id column added, this way a Note can have a direct relation with its respective conversation.

components/Conversation/Conversation.php

@@ -132,6 +132,7 @@ class Conversation extends Component
     {
         $r->connect('reply_add', '/object/note/{id<\d+>}/reply', [ReplyController::class, 'replyAddNote']);
         $r->connect('replies', '/@{nickname<' . Nickname::DISPLAY_FMT . '>}/replies', [ReplyController::class, 'replies']);
+        $r->connect('conversation', '/conversation/{id<\d+>}', [ReplyController::class, 'conversation']);
 
         return Event::next;
     }