feat: Attachments view (#7156)

* feat: Attachments view with key shortcuts and dynamically updates when user delete or sent new attachments

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/api/inbox/conversation.js

@@ -127,6 +127,10 @@ class ConversationApi extends ApiClient {
       user_ids: userIds,
     });
   }
+
+  getAllAttachments(conversationId) {
+    return axios.get(`${this.url}/${conversationId}/attachments`);
+  }
 }
 
 export default new ConversationApi();